16 Feb 2012
24 Feb 2012
This covers vulnerabilities where malicious people are able to gain system access and execute arbitrary code with the privileges of a local user.
A vulnerability has been reported in libpng, which can be exploited by malicious people to potentially compromise an application using the library.
The vulnerability is caused due to an integer overflow error within the "png_decompress_chunk()" function (pngrutil.c) when uncompressing certain chunks, which can be exploited to cause a heap-based buffer overflow.
Successful exploitation may allow execution of arbitrary code but requires tricking the user into opening a specially crafted PNG file.
The vulnerability is reported in versions prior to 1.0.57, 1.2.47, 1.4.9, and 1.5.9.
Update to version 1.0.57, 1.2.47, 1.4.9, or 1.5.9.
Originally reported by Juri Aedla in Google Chrome.