[manjaro-security] [arch-security] [ASA-201701-5] lib32-libpng: denial of service

Levente Polyak anthraxx at archlinux.org
Mon Jan 2 23:41:47 CET 2017


Arch Linux Security Advisory ASA-201701-5
=========================================

Severity: Low
Date    : 2017-01-02
CVE-ID  : CVE-2016-10087
Package : lib32-libpng
Type    : denial of service
Remote  : Yes
Link    : https://security.archlinux.org/AVG-120

Summary
=======

The package lib32-libpng before version 1.6.27-1 is vulnerable to
denial of service.

Resolution
==========

Upgrade to 1.6.27-1.

# pacman -Syu "lib32-libpng>=1.6.27-1"

The problem has been fixed upstream in version 1.6.27.

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
==========

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

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