Some vulnerabilities have been reported in Apple QuickTime, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a user's system.

1) Some boundary errors exist in the handling of QTIF, JPEG and PICT images. This can be exploited to cause stack-based or heap-based buffer overflows and may allow arbitrary code execution when a malicious QTIF, JPEG or PICT image is viewed.

2) Some boundary and integer overflow/underflow errors exist in the handling of the "ImageWidth" and "Color Map Entry Size" parameters in TGA images. This can be exploited to cause a buffer overflow and may allow arbitrary code execution when a malicious TGA image is viewed.

3) Integer overflow errors exist in the handling of the "StripByteCounts" and "StripOffsets" parameters in TIFF images. This can be exploited to cause a buffer overflow and may allow execution of arbitrary code when a malicious TIFF image is viewed either from Internet Explorer or from the QuickTime Player.

4) A boundary error exists in the handling of the Netscape Navigator Application Extension Block in GIF images. This can be exploited to cause a heap-based buffer overflow and may allow arbitrary code execution when a malicious GIF image is viewed via a malicious web site that uses ActiveX controls.

5) A boundary error exists in QuickTime.qts in the handling of the "stsd" atom in QuickTime format movie files. This can be exploited to cause a heap-based buffer overflow and may allow arbitrary code execution when a movie file containing specially-crafted "Sample Description Table" or "Last compatible hint track version" entries is viewed.

6) An error exists in QuickTime.qts in the handling of the "Movie Resource" atom in QuickTime format movie files. This can be exploited to cause a heap-based buffer overflow and may allow arbitrary code execution when a movie file containing an overly large atom size value is viewed.

7) Missing sanitisation of the "ImageWidth" parameter in TIFF images can be exploited to crash the QuickTime Player when a malicious image is viewed.

The vulnerabilities affect both the Mac OS X and the Windows platforms.

Solution
Update to version 7.0.4.
Further details available to Secunia VIM customers

Provided and/or discovered by
1) Varun Uppal of Kanbay, Fang Xing of eEye Digital Security, and Dennis Rand of Cirt.dk.
2-3, 7) Dejun Meng, Fortinet.
4) Fang Xing, eEye Digital Security.
5-6) Karl Lynn, eEye Digital Security.

Changelog
Further details available to Secunia VIM customers

Original Advisory
Apple:
http://docs.info.apple.com/article.html?artnum=303101

eEye Digital Security:
http://www.eeye.com/html/research/advisories/AD20060111a.html
http://www.eeye.com/html/research/advisories/AD20060111b.html
http://www.eeye.com/html/research/advisories/AD20060111c.html
http://www.eeye.com/html/research/advisories/AD20060111d.html

Cirt.dk:
http://cirt.dk/advisories/cirt-41-advisory.pdf

Fortinet:
http://www.fortiguardcenter.com/advisory/FGA-2006-01.html
http://www.fortiguardcenter.com/advisory/FGA-2006-02.html
http://www.fortiguardcenter.com/advisory/FGA-2006-03.html
http://www.fortiguardcenter.com/advisory/FGA-2006-04.html
http://www.fortiguardcenter.com/advisory/FGA-2006-05.html
http://www.fortiguardcenter.com/advisory/FGA-2006-06.html

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers