Arch Linux: ASA-201608-21 Critical: Mupdf Arbitrary Code Execution

Arch Linux Security Advisory ASA-201608-21
=========================================
Severity: Critical
Date    : 2016-08-30
CVE-ID  : CVE-2016-6265
Package : mupdf
Type    : arbitrary code execution
Remote  : Yes
Link    : https://wiki.archlinux.org/title/CVE

Summary
======
The package mupdf before version 1.9a-4 is vulnerable to arbitrary code
execution.

Resolution
=========
Upgrade to 1.9a-4

# pacman -Syu "mupdf>=1.9a-4"

The fix has been backported from an upstream patch.

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

Description
==========
Marco Grassi discovered a use-after-free vulnerability in MuPDF. An
attacker can take advantage of this flaw to cause an application crash
(denial-of-service), or potentially to execute arbitrary code with the
privileges of the user running MuPDF, if a specially crafted PDF file is
processed.

Impact
=====
A remote attacker can execute arbitrary code or crash MuPDF by tricking
a user into opening a crafted pdf file.

References
=========
https://bugs.ghostscript.com/show_bug.cgi
https://security-tracker.debian.org/tracker/CVE-2016-6265