{
  "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": "* SECURITY UPDATE: stack-based buffer overflow in the image compositor\n     - debian/patches/CVE-2020-35492.patch: in _inplace_src_spans() in\n       src/cairo-image-compositor.c, take the mask write pointer from\n       pixman_image_get_data(r->mask) instead of the r->_buf tail of the\n       stack-allocated span renderer, so a row wider than SZ_BUF (whose\n       mask pixman already backs with a heap allocation) can no longer be\n       written past the end of the stack buffer.\n     - CVE-2020-35492",
        "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-2026:1787645764",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1787645764"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/ubuntu18.04els/advisories/2026/clsa-2026_1787645764.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-08-25T08:16:46Z",
      "generator": {
        "date": "2026-08-25T08:16:46Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2026:1787645764",
      "initial_release_date": "2026-08-25T08:16:46Z",
      "revision_history": [
        {
          "date": "2026-08-25T08:16:46Z",
          "number": "1",
          "summary": "Initial version"
        }
      ],
      "status": "final",
      "version": "1"
    },
    "title": "Fix CVE(s): CVE-2020-35492"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Ubuntu 18.04",
                "product": {
                  "name": "Ubuntu 18.04",
                  "product_id": "Ubuntu-18",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Ubuntu"
          }
        ],
        "category": "vendor",
        "name": "Canonical Ltd."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                "product": {
                  "name": "libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_id": "libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/libcairo2@1.15.10-2ubuntu0.1%2Btuxcare.els1?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                "product": {
                  "name": "libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_id": "libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/libcairo-script-interpreter2@1.15.10-2ubuntu0.1%2Btuxcare.els1?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                "product": {
                  "name": "cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_id": "cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/cairo-perf-utils@1.15.10-2ubuntu0.1%2Btuxcare.els1?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                "product": {
                  "name": "libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_id": "libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/libcairo-gobject2@1.15.10-2ubuntu0.1%2Btuxcare.els1?arch=amd64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                "product": {
                  "name": "libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_id": "libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/libcairo2-dev@1.15.10-2ubuntu0.1%2Btuxcare.els1?arch=amd64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all",
                "product": {
                  "name": "libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all",
                  "product_id": "libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all",
                  "product_identification_helper": {
                    "purl": "pkg:deb/cloudlinux/libcairo2-doc@1.15.10-2ubuntu0.1%2Btuxcare.els1?arch=all"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "all"
          }
        ],
        "category": "vendor",
        "name": "CloudLinux"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64 as a component of Ubuntu 18.04",
          "product_id": "Ubuntu-18:libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64"
        },
        "product_reference": "libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Ubuntu-18"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all as a component of Ubuntu 18.04",
          "product_id": "Ubuntu-18:libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all"
        },
        "product_reference": "libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all",
        "relates_to_product_reference": "Ubuntu-18"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64 as a component of Ubuntu 18.04",
          "product_id": "Ubuntu-18:libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64"
        },
        "product_reference": "libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Ubuntu-18"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64 as a component of Ubuntu 18.04",
          "product_id": "Ubuntu-18:cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64"
        },
        "product_reference": "cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Ubuntu-18"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64 as a component of Ubuntu 18.04",
          "product_id": "Ubuntu-18:libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64"
        },
        "product_reference": "libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Ubuntu-18"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64 as a component of Ubuntu 18.04",
          "product_id": "Ubuntu-18:libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64"
        },
        "product_reference": "libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Ubuntu-18"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-35492",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in cairo's image-compositor.c in all versions prior to 1.17.4. This flaw allows an attacker who can provide a crafted input file to cairo's image-compositor (for example, by convincing a user to open a file in an application using cairo, or if an application uses cairo on untrusted input) to cause a stack buffer overflow -> out-of-bounds WRITE. The highest impact from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "Ubuntu-18:cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
          "Ubuntu-18:libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
          "Ubuntu-18:libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
          "Ubuntu-18:libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
          "Ubuntu-18:libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
          "Ubuntu-18:libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2020-35492"
        },
        {
          "category": "external",
          "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=1898396",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1898396"
        },
        {
          "category": "external",
          "summary": "https://security.gentoo.org/glsa/202305-21",
          "url": "https://security.gentoo.org/glsa/202305-21"
        }
      ],
      "release_date": "2021-03-18T19:15:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-25T08:16:06.271962Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1787645764",
          "product_ids": [
            "Ubuntu-18:cairo-perf-utils-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
            "Ubuntu-18:libcairo-gobject2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
            "Ubuntu-18:libcairo-script-interpreter2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
            "Ubuntu-18:libcairo2-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
            "Ubuntu-18:libcairo2-dev-0:1.15.10-2ubuntu0.1+tuxcare.els1.amd64",
            "Ubuntu-18:libcairo2-doc-0:1.15.10-2ubuntu0.1+tuxcare.els1.all"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1787645764"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}