[arch-security] [ASA-201605-8] gd: arbitrary code execution

[Remi Gacogne]

Arch Linux Security Advisory ASA-201605-8
=========================================

Severity: Critical
Date    : 2016-05-06
CVE-ID  : CVE-2016-3074
Package : gd
Type    : arbitrary code execution
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package gd before version 2.1.1-4 is vulnerable to arbitrary code
execution.

Resolution
==========

Upgrade to 2.1.1-4.

# pacman -Syu "gd>=2.1.1-4"

The problem has been fixed upstream, but a version including the fix has
not been released yet.

Workaround
==========

None.

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

A heap-based buffer overflow caused by an integer signedness error has
been found in the libgd code handling compressed gd2 chunks.

Impact
======

A remote attacker can cause a denial of service or execute arbitrary
code on the affected host by submitting a crafted image file.

References
==========

http://seclists.org/oss-sec/2016/q2/128
https://github.com/libgd/libgd/commit/2bb97f407c1145c850416a3bfbcc8cf124e68a19
https://access.redhat.com/security/cve/CVE-2016-3074

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