CVE-2020-36430

Published: Jul 20, 2021Modified: Nov 21, 2024

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

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 (2)

Products: Libass Project: Libass · Fedoraproject: Fedora

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Libass Project Libass	From 0.15.0 to 0.15.1

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 34

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (10)

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674

Source: cve@mitre.org

Issue TrackingPatchThird Party Advisory

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml

Source: cve@mitre.org

Third Party Advisory

https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632

Source: cve@mitre.org

PatchThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/

Source: cve@mitre.org

https://security.gentoo.org/glsa/202208-13

Source: cve@mitre.org

Third Party Advisory

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674