{"id":"CVE-2020-26682","aliases":["DEBIAN-CVE-2020-26682","EUVD-2020-19224","GHSA-87rf-m79q-qqqf","JLSEC-2026-155","MGASA-2021-0017","SUSE-SU-2021:0936-1","UBUNTU-CVE-2020-26682","USN-8815-1","openSUSE-SU-2021:0472-1"],"status":"published","title":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer...","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer 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15.2","package":"libass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.14.0-lp152.4.3.1"}]}]}],"products":[{"vendor":"libass_project","product":"libass"}],"references":[{"url":"https://github.com/libass/libass/issues/431","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://github.com/libass/libass/pull/432","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report","web"]},{"url":"http://www.openwall.com/lists/oss-security/2020/11/19/7","tags":["mailing-list","x_refsource_MLIST","x_transferred","Exploit","Issue Tracking","Mailing List","Third Party Advisory","report","web"]},{"url":"https://security.gentoo.org/glsa/202012-12","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26682"},{"url":"https://github.com/advisories/GHSA-87rf-m79q-qqqf"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-26682","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2021-0017.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=27385","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2020/09/29/2","tags":["web"]},{"url":"https://www.openwall.com/lists/oss-security/2020/11/19/7","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20210936-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1177862","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26682","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2020-26682","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-26682","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-8815-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-24994","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-61626","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-61627","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BGQ6Q6RCVRPDWCXGFBVQDFSYE4QKBYMU/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2020-26682","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2020-10-16T13:19:23Z","modified":"2024-08-04T15:56:05.034Z","updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-19224","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2020-10-16T13:19:23Z","modified":"2024-08-04T15:56:05Z","updated_at":"2026-11-03T03:07:14.653267Z"}],"ghsa":[{"id":"GHSA-87rf-m79q-qqqf","title":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer...","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2022-05-24T17:31:04Z","modified":"2023-01-27T05:02:38Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:42:04.742793Z"}],"nvd":[{"id":"CVE-2020-26682","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2020-10-16T14:15:11.893Z","modified":"2026-06-17T03:08:18.627Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:06:19.351389Z"}],"osv":[{"id":"CVE-2020-26682","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2020-10-16T14:15:11.893Z","modified":"2026-10-20T10:54:19.068719609Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.248747Z"},{"id":"DEBIAN-CVE-2020-26682","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2020-10-16T14:15:11.893Z","modified":"2026-10-26T12:02:41.161444797Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:33.729655Z"},{"id":"JLSEC-2026-155","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2026-04-20T18:02:38.348Z","modified":"2026-07-18T00:00:33.458181142Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:47:18.159338Z"},{"id":"UBUNTU-CVE-2020-26682","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.","status":"published","published":"2020-10-16T14:15:00Z","modified":"2026-09-25T00:36:21.121416005Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:24.541803Z"},{"id":"MGASA-2021-0017","title":"Updated libass packages fix security vulnerability","description":"In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke`\ncauses a signed integer overflow. (CVE-2020-26682)\n","status":"published","published":"2021-01-10T19:46:12Z","modified":"2026-04-16T04:43:32.274704957Z","updated_at":"2026-11-02T15:49:41.509337Z"},{"id":"openSUSE-SU-2021:0472-1","title":"Security update for libass","description":"This update for libass fixes the following issues:\n\n- CVE-2020-26682: Fixed a signed integer overflow in the call to outline_stroke() (bsc#1177862).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2021-03-25T08:11:27Z","modified":"2026-02-04T02:48:11.862932Z","updated_at":"2026-11-02T16:58:31.879684Z"},{"id":"SUSE-SU-2021:0936-1","title":"Security update for libass","description":"This update for libass fixes the following issues:\n\n- CVE-2020-26682: Fixed a signed integer overflow in the call to outline_stroke() (bsc#1177862).\n","status":"published","published":"2021-03-24T11:22:02Z","modified":"2026-02-04T04:28:58.828462Z","updated_at":"2026-11-02T15:53:48.690034Z"},{"id":"USN-8815-1","title":"libass vulnerabilities","description":"It was discovered that libass incorrectly handled parsing operations for\nspecific nested character strings. An attacker could use this issue to\ncause libass to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. This issue only affected Ubuntu 14.04 LTS,\nUbuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.\n(CVE-2020-24994)\n\nIt was discovered that libass incorrectly handled certain outline\nprocessing operations. An attacker could use this issue to cause libass\nto crash, resulting in a denial of service. This issue only affected\nUbuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-26682)\n\nIt was discovered that libass incorrectly handled certain ASS subtitle\nfiles when measuring wrapped lines. An attacker could use this issue to\ncause libass to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. This issue only affected Ubuntu 24.04 LTS and\nUbuntu 26.04 LTS. (CVE-2026-61627)\n\nIt was discovered that libass incorrectly handled certain Matroska\nsubtitle chunks with negative ReadOrder values. An attacker could use\nthis issue to cause libass to crash, resulting in a denial of service,\nor possibly execute arbitrary code. This issue only affected Ubuntu\n26.04 LTS. (CVE-2026-61626)","status":"published","published":"2026-09-24T14:57:46Z","modified":"2026-11-03T21:18:32.82470971Z","updated_at":"2026-11-03T21:43:43.010304Z"}]}}