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CVE-2020-26682

Published: 16 October 2020

In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
libass
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Not vulnerable
(1:0.15.0-1)
impish Not vulnerable
(1:0.15.0-2)
jammy Not vulnerable
(1:0.15.2-1)
bionic Needed

focal Needed

upstream
Released (0.15.0)
trusty Not vulnerable
(code not present)
xenial Not vulnerable
(code not present)
kinetic Not vulnerable
(1:0.15.2-1)
lunar Not vulnerable
(1:0.15.2-1)
mantic Not vulnerable
(1:0.15.2-1)
Patches:
upstream: https://github.com/libass/libass/pull/432/commits/676f9dc5b52ef406c5527bdadbcb947f11392929

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H