Users login

Create an account »

JOIN XATRIX

Users login

Home » Hacking News » Multiple Browser Zero Width GIF Image Memory Corruption Vulnerability

Multiple Browser Zero Width GIF Image Memory Corruption Vulnerability

by Nikola Strahija on September 9th, 2002 Multiple web browsers are prone to memory corruption when handling GIF image files with a width field set to zero. Browsers reported to be affected are Netscape, Mozilla and Opera on Linux platforms. Other browsers and platforms may also be affected. It may be possible to exploit this issue to cause a denial of service or potentially execute arbitrary code.


As multiple browsers are affected, this vulnerability may be due to a common issue in a library used to render GIF images (such as libungif). This possibility has not been confirmed.

Remote: Yes
Exploit: A proof-of-concept is provided at the following location:

http://crash.ihug.co.nz/~Sneuro/zerogif/


Newsletter signup

Signup to our monthly newsletter and stay in touch with IT news!

Free E-books

We've got ebooks! But they're not online. :( Please give us a few days to bring downloads back.

Contact

Have something to say or just wanna drop us a line? Please keep this in mind: to spam, we reply with spam.

Contact us »