Description
Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11 allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a malformed CHM file with a large name length in the CHM chunk header, aka "CHM name length memory consumption vulnerability."
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Sophos AntiVirus - '.CHM' Chunk Name Length Memory Corruption (PoC) EDB-2911 · dos · Dec 10, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://www.sophos.com/support/knowledgebase/article/7609.html
- 1017132 vdb-entry
- ADV-2006-4239 vdb-entry
- 20816 vdb-entry
- 20061208 Sophos Antivirus CHM Chunk Name Length Memory Corruption Vulnerability third-party-advisory
- 22591 third-party-advisory