libpng "png_set_text_2()" Memory Corruption Vulnerability

by Carol~ Moderator - 3/30/12 7:33 AM

In Reply to: VULNERABILITIES / FIXES - March 30, 2012 by Carol~ Moderator

Release Date : 2012-03-30

Criticality level : Moderately critical
Impact : System access
Where : From remote
Solution Status : Vendor Patch

Software: libpng 1.x

Description:
A vulnerability has been reported in libpng, which can be exploited by malicious people to compromise an application using the library.

The vulnerability is caused due to an error within the "png_set_text_2()" function (pngset.c) when parsing certain text chunks and can be exploited to corrupt heap memory via a specially crafted PNG file.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in versions prior to 1.5.10, 1.4.11, 1.2.49, and 1.0.59.

Solution:
Update to version 1.5.10, 1.4.11, 1.2.49, or 1.0.59.

Provided and/or discovered by:
Reported by the vendor.

Original Advisory:
http://www.libpng.org/pub/png/src/libpng-1.5.10-README.txt

http://secunia.com/advisories/48587/