Security advisory

{
  "id": "b13ee8ef50aa80ab4e29009e1389a2f9d8bb634296906a9ea11d8d6a41af3fad",
  "url": "https://osv.dev/vulnerability/CVE-2016-7972",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-7972",
    "summary": "The check_allocations function in libass/ass_shaper.c in libass before 0.13.4 allows remote attackers to cause a denial of service (memory allocation failure) via unspecified vectors.",
    "evidence": "osv:CVE-2016-7972",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2016-7972",
      "aliases": [
        "CVE-2016-7972"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libass/libass",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "27b0232b0d9259bc009389a019eb6b47103f484a"
                },
                {
                  "fixed": "8551555c86f50f978f9ddd55a8d20bceb80d92fc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.13.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8551555c86f50f978f9ddd55a8d20bceb80d92fc"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "0.13.4"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.13.3",
            "0.13.2",
            "0.13.1",
            "0.13.0",
            "0.12.3",
            "0.12.2",
            "0.12.1",
            "0.12.0",
            "0.11.2",
            "0.11.1",
            "0.11.0",
            "0.10.2",
            "0.10.1",
            "0.10.0",
            "0.9.12",
            "0.9.11",
            "0.9.10",
            "0.9.9",
            "0.9.8",
            "0.9.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7972.json"
          }
        }
      ],
      "modified": "2026-10-20T10:47:31.580341021Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KW6DNERYHPI5Y6SQYU3XKTVSCOWMIHUC/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7JJ2SGVOX6UQQIRMVC3QACJLKHE2PYN/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUOUOK3VULMMZTNSCRFCNPDAPDWAVK7X/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1381960",
        "https://github.com/libass/libass/pull/240/commits/aa54e0b59200a994d50a346b5d7ac818ebcf2d4b",
        "https://github.com/libass/libass/releases/tag/0.13.4",
        "https://security.gentoo.org/glsa/201702-25"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "23"
                  },
                  {
                    "last_affected": "23"
                  },
                  {
                    "introduced": "24"
                  },
                  {
                    "last_affected": "24"
                  },
                  {
                    "introduced": "25"
                  },
                  {
                    "last_affected": "25"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "42.1"
                  },
                  {
                    "last_affected": "42.1"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:opensuse",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "13.2"
                  },
                  {
                    "last_affected": "13.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-7972",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379473,
  "published_at": "2017-03-03T16:59:00.717+00:00"
}