Some vulnerabilities have been reported in Tk, which can potentially be exploited by malicious people to compromise an application using the library.

1) A vulnerability is caused due to a boundary error within the "ReadImage()" function in generic/tkImgGIF.c. This can be exploited to cause a buffer overflow via interlaced GIF files containing multiple smaller frames following the first frame.

2) A vulnerability is caused due to a boundary error within the "FileReadGIF()" function in generic/tkImgGIF.c. This can be exploited to cause a buffer overflow via specially crafted GIF files.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.

The vulnerabilities are reported in versions prior to 8.4.16.

Solution
Update to version 8.4.16.
Further details available to Secunia VIM customers

Provided and/or discovered by
1) Reported by the vendor.
2) Schelte Bron

Changelog
Further details available to Secunia VIM customers

Original Advisory
http://sourceforge.net/project/shownotes.php?release_id=541207

Deep Links
Links available to Secunia VIM customers