{"id":"CVE-2020-36430","aliases":["DEBIAN-CVE-2020-36430","EUVD-2020-23958","GHSA-pqvw-6c6x-gvwh","MGASA-2021-0413","OESA-2021-1303","SUSE-SU-2021:2792-1","UBUNTU-CVE-2020-36430","openSUSE-SU-2021:1174-1","openSUSE-SU-2021:2792-1"],"status":"published","title":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from...","description":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for 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Advisory","fix","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://security.gentoo.org/glsa/202208-13","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36430","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/"},{"url":"https://github.com/advisories/GHSA-pqvw-6c6x-gvwh"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-36430","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2021-0413.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=29392","tags":["report"]},{"url":"https://lists.suse.com/pipermail/sle-security-updates/2021-August/009325.html","tags":["web"]},{"url":"https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1303","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212792-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1188539","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2020-36430","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2020-36430","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-36430","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UM3NSAZAHOVXI7OL5NKRPHCXG5LZTLKM/","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/TQ4DQBQAAUJIVKVW7IIROTEKRYDSFT2S/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2020-36430","description":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.","status":"published","published":"2021-07-20T06:47:14Z","modified":"2024-08-04T17:30:08.337Z","updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2020-23958","description":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.","status":"published","published":"2021-07-20T06:47:14Z","modified":"2024-08-04T17:30:08Z","updated_at":"2026-11-03T03:07:03.010139Z"}],"ghsa":[{"id":"GHSA-pqvw-6c6x-gvwh","title":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from...","description":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.","status":"published","published":"2022-05-24T19:08:29Z","modified":"2023-01-30T05:00:53Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:17.249643Z"}],"nvd":[{"id":"CVE-2020-36430","description":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.","status":"published","published":"2021-07-20T07:15:07.817Z","modified":"2026-06-17T03:15:28.513Z","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":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"CVE-2020-36430","description":"libass 0.15.x before 0.15.1 has a heap-based buffer 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(Advanced Substation Alpha/Substation Alpha)  subtitle format. It is mostly compatible with VSFilter.\r\n\r\nSecurity Fix(es):\r\n\r\nlibass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.(CVE-2020-36430)","status":"published","published":"2021-08-06T11:04:32Z","modified":"2026-08-18T01:15:32.538702303Z","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":"2026-11-02T15:52:38.987987Z"},{"id":"UBUNTU-CVE-2020-36430","description":"libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.","status":"withdrawn","published":"2021-07-20T07:15:00Z","modified":"2025-07-16T07:41:38.282894Z","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":"2026-11-02T15:54:25.179924Z"},{"id":"MGASA-2021-0413","title":"Updated libass packages fix security vulnerability","description":"Updated libass packages fix security vulnerability:\n\nlibass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars\n(called from decode_font and process_text) because the wrong integer data\ntype is used for subtraction (CVE-2020-36430).\n","status":"published","published":"2021-08-27T15:29:51Z","modified":"2026-04-16T04:44:20.281161677Z","updated_at":"2026-11-02T15:49:41.849028Z"},{"id":"openSUSE-SU-2021:1174-1","title":"Security update for libass","description":"This update for libass fixes the following issues:\n\n- CVE-2020-36430: Fixed heap-based buffer overflow in decode_chars (bsc#1188539).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2021-08-21T00:36:48Z","modified":"2026-02-04T03:57:41.898233Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"openSUSE-SU-2021:2792-1","title":"Security update for libass","description":"This update for libass fixes the following issues:\n\n- CVE-2020-36430: Fixed heap-based buffer overflow in decode_chars (bsc#1188539).\n","status":"published","published":"2021-08-20T08:18:31Z","modified":"2026-02-04T04:31:25.973003Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"SUSE-SU-2021:2792-1","title":"Security update for libass","description":"This update for libass fixes the following issues:\n\n- CVE-2020-36430: Fixed heap-based buffer overflow in decode_chars (bsc#1188539).\n","status":"published","published":"2021-08-20T08:19:01Z","modified":"2026-02-04T03:10:37.247256Z","updated_at":"2026-11-02T15:53:49.605187Z"}]}}