Heap-based buffer overflow in Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when archive scanning is enabled, allows remote attackers to trigger a denial of service (memory corruption) via a CHM file with an LZX decompression header that specifies a Window_size of 0.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.sophos.com/support/knowledgebase/article/7609.html | |
| http://securitytracker.com/id?1017132 | vdb entry |
| http://www.vupen.com/english/advisories/2006/4239 | vdb entry vendor advisory |
| http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=452 | third party advisory |
| http://www.securityfocus.com/bid/20816 | vdb entry |
| http://secunia.com/advisories/22591 | third party advisory vendor advisory |