CVE-2015-8557

Publication date 16 December 2015

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The FontManager._get_nix_font_path function in formatters/img.py in Pygments 1.2.2 through 2.0.2 allows remote attackers to execute arbitrary commands via shell metacharacters in a font name.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
pygments	15.10 wily	Fixed 2.0.1+dfsg-1.1svn1.1
	15.04 vivid	Fixed 2.0.1+dfsg-1svn1.1
	14.04 LTS trusty	Fixed 1.6+dfsg-1ubuntu1.1
	12.04 LTS precise	Fixed 1.4+dfsg-2ubuntu0.1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
pygments	Upstream: https://bitbucket.org/birkenfeld/pygments-main/commits/0036ab1c99e256298094505e5e92f

Severity score breakdown

Parameter	Value
Base score	9.0 · Critical
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-2862-1
Pygments vulnerability
7 January 2016