Arch Linux alert ASA-201608-22 (mupdf)

From:
    	     
 
Levente Polyak <anthraxx@archlinux.org> 
To:
    	     
 
arch-security@archlinux.org 
Subject:
    	     
 
[arch-security] [ASA-201608-22] mupdf: arbitrary code execution 
Date:
    	     
 
Wed, 31 Aug 2016 01:24:30 +0200
Message-ID:
    	     
 
<c60c4a77-eb5b-2276-7e70-a503f2ebd5f9@archlinux.org>
Arch Linux Security Advisory ASA-201608-22
==========================================

Severity: Critical
Date    : 2016-08-30
CVE-ID  : CVE-2016-6525
Package : mupdf
Type    : arbitrary code execution
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package mupdf before version 1.9a-5 is vulnerable to arbitrary code
execution.

Resolution
==========

Upgrade to 1.9a-5

# pacman -Syu "mupdf>=1.9a-5"

The fix has been backported from an upstream patch.

Workaround
==========

None.

Description
===========

Yu Hong and Zheng Jihong discovered a heap overflow vulnerability within
the pdf_load_mesh_params function, allowing an attacker 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
==========

http://bugs.ghostscript.com/show_bug.cgi?id=696954
https://security-tracker.debian.org/tracker/CVE-2016-6525
http://git.ghostscript.com/?p=mupdf.git;a=commitdiff;h=39...