{"id":"CVE-2009-0749","aliases":["DEBIAN-CVE-2009-0749","EUVD-2009-0749","GHSA-pmrr-7vvq-vpj6"],"status":"published","title":"Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c...","description":"Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is 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Advisory","advisory","fix"]},{"url":"http://optipng.sourceforge.net","tags":["x_refsource_CONFIRM","x_transferred","Product","web"]},{"url":"http://sourceforge.net/tracker/index.php?func=detail\u0026aid=2582013\u0026group_id=151404\u0026atid=780913","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","report"]},{"url":"http://secunia.com/advisories/35685","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Broken Link","advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","Mailing List","article"]},{"url":"http://www.openwall.com/lists/oss-security/2009/02/24/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","article"]},{"url":"http://www.openwall.com/lists/oss-security/2009/02/25/4","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing 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accessed.","status":"published","published":"2009-03-02T20:30:00.217Z","modified":"2026-06-16T23:05:43.573Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:01:34.44527Z"}],"osv":[{"id":"CVE-2009-0749","description":"Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.","status":"published","published":"2009-03-02T20:30:00Z","modified":"2026-04-10T03:40:37.676041Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:43:57.452479Z"},{"id":"DEBIAN-CVE-2009-0749","description":"Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.","status":"published","published":"2009-03-02T20:30:00.217Z","modified":"2026-10-23T18:01:53.825040172Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:24.013654Z"}]}}