Arch Linux: ASA-201701-6 Low: lib32-libpng12 Denial Of Service

Arch Linux Security Advisory ASA-201701-6
========================================
Severity: Low
Date    : 2017-01-02
CVE-ID  : CVE-2016-10087
Package : lib32-libpng12
Type    : denial of service
Remote  : Yes
Link    : https://security.archlinux.org/AVG-121

Summary
======
The package lib32-libpng12 before version 1.2.57-1 is vulnerable to
denial of service.

Resolution
=========
Upgrade to 1.2.57-1.

# pacman -Syu "lib32-libpng12>=1.2.57-1"

The problem has been fixed upstream in version 1.2.57.

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

Description
==========
A NULL-pointer dereference issue has been found in png_set_text_2() in
libpng. To be vulnerable, an application has to load a text chunk into
the png structure, then delete all text, then add another text chunk to
the same png structure.

Impact
=====
A remote attacker is able to crash the application under certain
circumstances.

References
=========
https://seclists.org/oss-sec/2016/q4/782
https://security.archlinux.org/CVE-2016-10087