CVEvulnerability
CVE-2020-36430
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-07-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-787
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.
Affected configurations
• libass project libass (>= 0.15.0 < 0.15.1)
• fedoraproject fedora 34
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674 Issue Tracking, Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml Third Party Advisory
- https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632 Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-13 Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674 Issue Tracking, Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml Third Party Advisory
- https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632 Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-13 Third Party Advisory