{ "document": { "aggregate_severity": { "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "CVE-2026-84782: reset s->init_off on DTLS handshake retransmit and skip\n retransmission while a handshake write is suspended\n- CVE-2026-35189: compute relative CRLDP names on demand instead of for every\n cached certificate\n- CVE-2026-72897: refresh ssl_pkey_num and valid_flags in SSL_set_SSL_CTX\n- CVE-2026-54872: pin the scalar width in the EC ladder so BN_add padding no\n longer depends on the secret nonce\n- CVE-2026-75805: skip the issuer/serial comparison for CSR-based CMP\n revocation requests\n- CVE-2026-75806: fail short TLS 1.2/DTLS AEAD records without sending an alert", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/tuxcare9.8esu/advisories/2026/clsa-2026_1791282362.json" } ], "tracking": { "current_release_date": "2026-10-06T10:27:30Z", "generator": { "date": "2026-10-06T10:27:30Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1791282362", "initial_release_date": "2026-10-06T10:27:30Z", "revision_history": [ { "date": "2026-10-06T10:27:30Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "openssl: Fix of 6 CVEs" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "AlmaLinux 9.8", "product": { "name": "AlmaLinux 9.8", "product_id": "AlmaLinux-9.8", "product_identification_helper": { "cpe": "cpe:2.3:o:almalinux:almalinux:9.8:*:*:*:*:*:*:*" } } } 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"openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686 as a component of Rocky Linux 9.8", "product_id": "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686" }, "product_reference": "openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "relates_to_product_reference": "Rocky Linux-9.8" }, { "category": "default_component_of", "full_product_name": { "name": "openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64 as a component of Rocky Linux 9.8", "product_id": "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" }, "product_reference": "openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "relates_to_product_reference": "Rocky Linux-9.8" }, { "category": "default_component_of", "full_product_name": { "name": "openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64 as a component of Rocky Linux 9.8", "product_id": "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64" }, "product_reference": "openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "relates_to_product_reference": "Rocky Linux-9.8" }, { "category": "default_component_of", "full_product_name": { "name": "openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686 as a component of Rocky Linux 9.8", "product_id": "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686" }, "product_reference": "openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "relates_to_product_reference": "Rocky Linux-9.8" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-72897", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "notes": [ { "category": "description", "text": "Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a\nconnection to a different SSL_CTX part way through a handshake may access\nmemory beyond the end of an internal array if the replacement context knows\nabout more provider signature algorithms than the context the connection was\ncreated from. Applications which never call SSL_set_SSL_CTX() are not\naffected.\n\nImpact summary: A remote peer may be able to cause a small out-of-bounds\nread, and in some circumstances a fixed-value out-of-bounds write, on the\nserver heap. This may lead to a Denial of Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: A TLS connection records how many certificate slots it has\nwhen it is created, taken from the SSL_CTX that created it: the built-in\ncertificate types plus one slot for each provider TLS-SIGALG entry that\ncontext was aware of. That count sizes an internal array of per-slot\ncertificate validity flags.\n\nAn application may replace a connection's SSL_CTX part way through the\nhandshake by calling SSL_set_SSL_CTX(), most commonly from a servername\ncallback in order to serve a different virtual host. Doing so did not\nrefresh the recorded count. A provider signature algorithm's slot index is\nits position in the list of whichever context resolves it, so if the\nreplacement context is aware of more of them than the original, an\nalgorithm offered by the peer can resolve to an index beyond the end of the\narray. Processing the peer's signature algorithms then reads one four byte\nword past the end for each such algorithm and, where the word read is zero,\nwrites a fixed value over it. A peer offering many of them can corrupt heap\nmetadata and abort the process.\n\nOnly provider signature algorithms which occupy one of the excess slots,\nand which the server also has configured, have this effect. Codepoints the\nreplacement context does not recognise are discarded without being resolved\nto a slot, and provider signature algorithms are usable only from TLS 1.3.\n\nThe two contexts must therefore be aware of different numbers of provider\nsignature algorithms, which requires separate library contexts, a provider\nloaded between the two being created, or providers which differ in what\nthey advertise - in 4.0, for example, the default provider advertises SM2\nwhere the FIPS provider does not. A deployment meeting the condition is\nalso unable to negotiate the affected algorithms with legitimate clients,\nsince the same stale count hides the corresponding certificates, so the\nmisconfiguration is likely to be noticed. For that reason, and because the\nconfiguration is not the default, this issue has been assessed as Low\nseverity.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", 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Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-72897" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/00646e5085a0d12d29e0d2f9b9bc5f7111a50922", "url": "https://github.com/openssl/openssl/commit/00646e5085a0d12d29e0d2f9b9bc5f7111a50922" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/4135f553c9d3ba4a09fe752f5d30af2a6a092b2e", "url": "https://github.com/openssl/openssl/commit/4135f553c9d3ba4a09fe752f5d30af2a6a092b2e" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/9c54d209486f6b1ad79fe2179c40f13200fa4f61", "url": "https://github.com/openssl/openssl/commit/9c54d209486f6b1ad79fe2179c40f13200fa4f61" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/e87ed26b298a74d8ba61a53e9c7bcd1acac6b814", "url": "https://github.com/openssl/openssl/commit/e87ed26b298a74d8ba61a53e9c7bcd1acac6b814" }, { "category": "external", "summary": "https://openssl-library.org/news/secadv/20260929.txt", "url": "https://openssl-library.org/news/secadv/20260929.txt" } ], "release_date": "2026-09-29T16:17:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-10-06T10:26:03.734585Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362", "product_ids": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", 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Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362" } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-35189", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "description", "text": "Issue summary: A certificate with many nameRelativeToCRLIssuer CRL\ndistribution points causes disproportionate heap growth when OpenSSL caches\nX.509 extensions.\n\nImpact summary: Receiving a crafted certificate from a malicious peer can lead\nto significant memory pressure and possible Denial of Service in clients or\nin servers that solicit client certificates.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: A certificate or a set of certificates that fits under the limit for\nsize of certificates accepted from the peer (~100 KiB) can result in allocation\nof several hundred MiB of resident memory on the receiving side\nduring a normal TLS handshake. This may be enough to crash the client or\nserver, if multiple concurrent connections lead to similarly large memory\nallocations.\n\nThe fix postpones processing of the CRL distribution points extensions in\ncertificates to the time when the processed value is required for CRL processing.\nThis avoids keeping large memory allocations for a long time when such\ncertificates are received.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", 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Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-35189" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/2b93c73b2c70ddc4c61c5e4bfaaa6bd71379eb84", "url": "https://github.com/openssl/openssl/commit/2b93c73b2c70ddc4c61c5e4bfaaa6bd71379eb84" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/3842516cc15e8b2cf55747011045e77547e71d89", "url": "https://github.com/openssl/openssl/commit/3842516cc15e8b2cf55747011045e77547e71d89" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/8e0efc7549b7ff8246d40e585e3fd604f728473f", "url": "https://github.com/openssl/openssl/commit/8e0efc7549b7ff8246d40e585e3fd604f728473f" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/c72ae182cac17a82e4246c6ecd4e9c4ec3586ec9", "url": "https://github.com/openssl/openssl/commit/c72ae182cac17a82e4246c6ecd4e9c4ec3586ec9" }, { "category": "external", "summary": "https://openssl-library.org/news/secadv/20260929.txt", "url": "https://openssl-library.org/news/secadv/20260929.txt" } ], "release_date": "2026-09-29T16:17:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-10-06T10:26:03.734585Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362", "product_ids": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", 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Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362" } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-84782", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "Issue summary: The DTLS retransmission logic does not correctly handle\na handshake message write that is suspended part-way through.\nThe retransmitted message can be read past the message buffer and\nthe retransmission overwrites the internal state the suspended write\nneeds to resume correctly.\n\nImpact summary: The retransmitted message can disclose a heap memory\nto the peer as plaintext handshake data or cause a crash and a Denial\nof Service when the read reaches an unmapped memory region.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: DTLS handshake messages can be written out in multiple\nfragments, and a write can suspend mid-message (returning WANT_WRITE)\nif the underlying transport temporarily cannot accept more data. While\nsuch a write is suspended, the DTLS retransmission timer may\nindependently fire and ask the retransmission logic to resend an\nearlier, already-acknowledged-as-sent message from its retransmit\nqueue.\n\nThe retransmission logic reused the same internal buffer and position\ntracking as the message that was still being written, without\nresetting the position back to the start of the message being\nretransmitted. As a result the retransmission was read starting from\nwherever the suspended write had left off, producing a mislabelled\nmessage whose body was leftover bytes from the other, larger message\nstill in flight - content that was never meant to be sent at that\npoint, and which could run past the end of the allocated buffer.\n\nSeparately, even when the retransmission is positioned correctly,\nallowing it to run to completion while another write is suspended\noverwrites the same shared bookkeeping that the suspended write\ndepends on to resume. When the application later resumes the\nsuspended write (via a subsequent SSL_read(), SSL_write(),\nSSL_accept(), or SSL_connect() call), it finds that bookkeeping in a\nstate inconsistent with the message and aborts the process in\na debugging build.\n\nThe fix resets the retransmission's read position to the start of the\nmessage before resending, and skips retransmission entirely whenever a\nhandshake write is still suspended, deferring to the next call that\nresumes it instead.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", 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"https://github.com/openssl/openssl/commit/906cf0ef1c85ca40ce69163e9086d6d3fe292943", "url": "https://github.com/openssl/openssl/commit/906cf0ef1c85ca40ce69163e9086d6d3fe292943" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/9f6b34422af7eb5dac61322e33dac1ae989fa628", "url": "https://github.com/openssl/openssl/commit/9f6b34422af7eb5dac61322e33dac1ae989fa628" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/a383dafdd754eb5b22bf45e37e1bff9d07277a58", "url": "https://github.com/openssl/openssl/commit/a383dafdd754eb5b22bf45e37e1bff9d07277a58" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/d951e02ede8f6a6ff8150546db44b34f0518192c", "url": "https://github.com/openssl/openssl/commit/d951e02ede8f6a6ff8150546db44b34f0518192c" }, { "category": "external", "summary": "https://openssl-library.org/news/secadv/20260929.txt", "url": "https://openssl-library.org/news/secadv/20260929.txt" } ], "release_date": "2026-09-29T16:17:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-10-06T10:26:03.734585Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362", "product_ids": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362" } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-54872", "cwe": { "id": "CWE-208", "name": "Observable Timing Discrepancy" }, "notes": [ { "category": "description", "text": "Issue summary: The generic elliptic-curve scalar multiplication used for\nECDSA and SM2 signature operations with curves that do not have a dedicated\nimplementation leaks information about the secret nonce through timing.\n\nImpact summary: An attacker able to measure signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: The generic elliptic-curve scalar multiplication used for\ncurves that do not have a dedicated constant-time implementation pads the\nsecret scalar with non-constant-time BIGNUM operations, so the time taken\ndepends on the value of the secret scalar derived from the ECDSA and SM2 nonce.\n\nThe leak is very small; observing it requires a large number of\nmeasurements. The effect is largest for curves whose group order lies\non a machine-word boundary, such as brainpoolP384r1.\n\nApplications using ECDSA signing over the Brainpool and other generic prime\ncurves, and SM2 signing on platforms that use the generic implementation,\nare vulnerable to this issue.\n\nThe NIST curves P-256, P-384 and P-521 use dedicated constant-time\nimplementations and are not affected.\n\nFIPS Impact: no\nThe FIPS modules are not affected: the approved NIST curves used in the FIPS\nprovider have dedicated constant-time implementations and do not use the\naffected code path.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", 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Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-54872" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/1a5bee8dc57430a2be69cd1ffe7fec6a62f4f179", "url": "https://github.com/openssl/openssl/commit/1a5bee8dc57430a2be69cd1ffe7fec6a62f4f179" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/3f7e1363dccec6f7732bb9e9fa471bb6e4aa68cb", "url": "https://github.com/openssl/openssl/commit/3f7e1363dccec6f7732bb9e9fa471bb6e4aa68cb" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/7d83bc7764999dfd91b83b4f0815b45390422afd", "url": "https://github.com/openssl/openssl/commit/7d83bc7764999dfd91b83b4f0815b45390422afd" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/8166827a78aad164a07aa86dea2b425403ced471", "url": "https://github.com/openssl/openssl/commit/8166827a78aad164a07aa86dea2b425403ced471" }, { "category": "external", "summary": "https://openssl-library.org/news/secadv/20260929.txt", "url": "https://openssl-library.org/news/secadv/20260929.txt" } ], "release_date": "2026-09-29T16:17:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-10-06T10:26:03.734585Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362", "product_ids": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", 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Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362" } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-75806", "cwe": { "id": "CWE-1284", "name": "Improper Validation of Specified Quantity in Input" }, "notes": [ { "category": "description", "text": "Issue summary: An established DTLS 1.2 association using an AEAD cipher suite\ncan be terminated by a single unauthenticated datagram whose encrypted\nfragment is shorter than the mandatory explicit IV and authentication tag\noverhead.\n\nImpact summary: An attacker who can send a datagram that is routed to an\nexisting DTLS 1.2 association can tear that association down without knowing\nany key material. This is a Denial of Service limited to the targeted\nassociation. There is no memory safety or confidentiality impact.\n\nCWE: CWE-1284: Improper Validation of Specified Quantity in Input\n\nDescription: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher\nsuite carries an explicit IV followed by the ciphertext and an authentication\ntag. When decrypting such a record the record layer passed the record length to\nthe cipher implementation before checking that the record was long enough to\ncontain the explicit IV and the tag. For a record shorter than that overhead the\ncipher implementation rejected the impossible length, and the record layer\ntreated this as an internal failure and raised a fatal internal_error alert\ninstead of treating the record as one that failed authentication.\n\nIn TLS 1.2 the same record causes a fatal internal_error alert instead of the\nexpected bad_record_mac alert. Since any undecryptable record already\nterminates a TLS connection, this is a protocol conformance issue rather than\na security issue in TLS.\n\nThe fix validates the record length against the explicit IV and tag length\nbefore any AEAD processing, so that TLS reports bad_record_mac and DTLS\nsilently discards the record.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky 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"external", "summary": "https://github.com/openssl/openssl/commit/050b275cd671a6eed1d6457642d41a5a77aab972", "url": "https://github.com/openssl/openssl/commit/050b275cd671a6eed1d6457642d41a5a77aab972" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/3a4589d015a9049d47b66f186cf50a8711343a1d", "url": "https://github.com/openssl/openssl/commit/3a4589d015a9049d47b66f186cf50a8711343a1d" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/5af82fefbaf2b5fec2fc0e1d87f112844902f01d", "url": "https://github.com/openssl/openssl/commit/5af82fefbaf2b5fec2fc0e1d87f112844902f01d" }, { "category": "external", "summary": "https://openssl-library.org/news/secadv/20260929.txt", "url": "https://openssl-library.org/news/secadv/20260929.txt" } ], "release_date": "2026-09-29T16:17:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-10-06T10:26:03.734585Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362", "product_ids": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", 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Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362" } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2026-75805", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "notes": [ { "category": "description", "text": "Issue summary: A CMP client that requests certificate revocation on the basis\nof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\nprocessing a crafted revocation response. \n\nImpact summary: The NULL pointer dereference happens on a read which \nleads to a crash and a Denial of Service for the affected client application.\n\nCWE: CWE-476: NULL-pointer dereference\n\nDescription: A CMP client revoking a certificate has to tell the server which\ncertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\ncertificate itself or its issuer name and serial number. This is\n'openssl cmp -cmd rr -csr ' on the command line, or\nOSSL_CMP_exec_RR_ses() with the certificate supplied via\nOSSL_CMP_CTX_set1_p10CSR() through the API.\n\nA CSR does not contain the issuer name and serial number of the certificate,\nso the client does not send them. A server may optionally name the\ncertificate it revoked in its response, and the client then compares that\nname against what it sent. Having sent neither an issuer name nor a serial\nnumber, it has nothing to compare against, and a server returning a specially\ncrafted name causes the client to read from a NULL pointer and crash.\n\nThe revocation response is checked for valid message protection before\nthe affected code is reached, so an attacker must be a malicious or\ncompromised CMP server, or a man-in-the-middle in possession of the\nsecret used for message protection. Clients that identify the certificate\nto be revoked by a certificate or by issuer and serial number rather\nthan by a PKCS#10 CSR are not affected.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-devel-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.i686", "AlmaLinux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", 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Linux-9.8:openssl-fips-provider-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-libs-1:3.5.8-1.el9_8.tuxcare.els1.x86_64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.aarch64", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.i686", "Rocky Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-75805" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166", "url": "https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7", "url": "https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/9eb2a8a9b86136cdb39d6d7d50644dd66941cdc3", "url": "https://github.com/openssl/openssl/commit/9eb2a8a9b86136cdb39d6d7d50644dd66941cdc3" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/abf02872a4b71767ecc72293424420f5b009190f", "url": "https://github.com/openssl/openssl/commit/abf02872a4b71767ecc72293424420f5b009190f" }, { "category": "external", "summary": "https://openssl-library.org/news/secadv/20260929.txt", "url": "https://openssl-library.org/news/secadv/20260929.txt" } ], "release_date": "2026-09-29T16:17:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-10-06T10:26:03.734585Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362", "product_ids": [ 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Linux-9.8:openssl-perl-1:3.5.8-1.el9_8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1791282362" } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }