Security advisory

{
  "id": "f4326616037a25d44f2758541d8700f22cb4a741fae001917771dd3eafe71354",
  "url": "https://osv.dev/vulnerability/CVE-2016-7949",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-7949",
    "summary": "Multiple buffer overflows in the (1) XvQueryAdaptors and (2) XvQueryEncodings functions in X.org libXrender before 0.9.10 allow remote X servers to trigger out-of-bounds write operations via vectors involving length fields.",
    "evidence": "osv:CVE-2016-7949",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2016-7949",
      "aliases": [
        "CVE-2016-7949"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.freedesktop.org/xorg/lib/libxrender",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "bb890936bcc6053cb7a46cd9225c257ff1be389f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:x.org:libxrender:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.9.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "libXrender-0.9.9",
            "libXrender-0.9.8",
            "libXrender-0.9.7",
            "libXrender-0.9.6",
            "libXrender-0.9.5",
            "libXrender-0.9.4",
            "libXrender-0.9.3",
            "libXrender-0.9.2",
            "libXrender-0_9_1",
            "XORG-7_1",
            "XORG-7_0_99_901",
            "XORG-7_0",
            "XORG-6_99_99_904",
            "XORG-6_99_99_903",
            "MODULAR_COPY",
            "XORG-6_99_99_902",
            "XORG-6_99_99_901",
            "XORG-6_99_99_900",
            "XORG-6_8_99_903",
            "XORG-6_8_99_902",
            "XORG-6_8_99_901",
            "XORG-6_8_99_900",
            "XORG-6_8_99_16",
            "XORG-6_8_99_15",
            "XORG-6_8_99_14",
            "XORG-6_8_99_9",
            "XORG-6_8_99_8",
            "XORG-6_8_99_13",
            "XORG-6_8_99_12",
            "XORG-6_8_99_11",
            "XORG-6_8_99_10",
            "sco_port_update-base",
            "XORG-6_8_99_7",
            "XORG-6_8_99_6",
            "XORG-6_8_99_5",
            "XORG-6_8_99_4",
            "XORG-6_8_99_3",
            "XORG-6_8_99_2",
            "XORG-6_8_99_1",
            "rel-0-6-1",
            "lg3d-rel-0-7-0",
            "lg3d-rel-0-6-2",
            "lg3d-base",
            "XORG-6_8_2",
            "XORG-6_8_1_904",
            "XORG-6_8_1_903",
            "XORG-6_8_1_902",
            "XORG-6_8_1_901",
            "XORG-6_8_1",
            "XORG-6_8_0",
            "XORG-6_7_99_904",
            "XORG-6_7_99_903",
            "XORG-6_7_99_902",
            "XORG-6_7_99_901",
            "XORG-6_7_99_2",
            "XORG-6_7_99_1",
            "XACE-SELINUX-MERGE",
            "xf86-4_4_99_1",
            "XORG-RELEASE-1-BASE",
            "XEVIE-MERGE",
            "XEVIE-BASE",
            "xf86-4_4_0",
            "xf86-4_3_99_903",
            "xf86-4_3_99_903_special",
            "xf86-4_3_99_902",
            "xf86-4_3_99_901",
            "xf86-4_3_99_16",
            "xf86-4_3_0_1",
            "xf86-012804-2330"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-7949.json"
          }
        }
      ],
      "modified": "2026-10-20T10:47:59.983372964Z",
      "provider": "osv",
      "references": [
        "https://cgit.freedesktop.org/xorg/lib/libXrender/commit/?id=9362c7ddd1af3b168953d0737877bc52d79c94f4",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WCKZFMZ76APAVMIRCUKKHEB4GAS7ZUP/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZHUT5YOSWVMBJNWZGUQNZRBFIZKRM4A6/",
        "https://lists.x.org/archives/xorg-announce/2016-October/002720.html",
        "https://security.gentoo.org/glsa/201704-03"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "24"
                  },
                  {
                    "last_affected": "24"
                  },
                  {
                    "introduced": "25"
                  },
                  {
                    "last_affected": "25"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2016-7949",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379918,
  "published_at": "2016-12-13T20:59:15.583+00:00"
}