CVE Vulnerability

CVE-2020-36430

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.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632 Patch Third Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674 Issue Tracking Patch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202208-13 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Information

Published : 2021-07-20 07:15

Updated : 2022-12-09 06:35

NVD link : CVE-2020-36430

Mitre link : CVE-2020-36430

Products Affected
No products.
CWE
CWE-787