Arch Linux Security Advisory ASA-202011-19
=========================================
Severity: Medium
Date    : 2020-11-19
CVE-ID  : CVE-2020-26682
Package : libass
Type    : arbitrary code execution
Remote  : No
Link    : https://security.archlinux.org/AVG-1285

Summary
======
The package libass before version 0.15.0-1 is vulnerable to arbitrary
code execution.

Resolution
=========
Upgrade to 0.15.0-1.

# pacman -Syu "libass>=0.15.0-1"

The problem has been fixed upstream in version 0.15.0.

Workaround
=========
None.

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

Impact
=====
A maliciously crafted file might crash the application or execute
arbitrary code.

References
=========
https://github.com/libass/libass/issues/431
https://github.com/libass/libass/pull/432
https://github.com/libass/libass/commit/676f9dc5b52ef406c5527bdadbcb947f11392929
https://security.archlinux.org/CVE-2020-26682

ArchLinux: 202011-19: libass: arbitrary code execution

November 29, 2020

Summary

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

Resolution

Upgrade to 0.15.0-1. # pacman -Syu "libass>=0.15.0-1"
The problem has been fixed upstream in version 0.15.0.

References

https://github.com/libass/libass/issues/431 https://github.com/libass/libass/pull/432 https://github.com/libass/libass/commit/676f9dc5b52ef406c5527bdadbcb947f11392929 https://security.archlinux.org/CVE-2020-26682

Severity
Package : libass
Type : arbitrary code execution
Remote : No
Link : https://security.archlinux.org/AVG-1285

Workaround

None.

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