Multiple Sophos Anti-Virus Petite Plugin denial of service

sophos-petite-plugin-dos (29918) The risk level is classified as LowLow Risk

Description:

Multiple Sophos products are vulnerable to a denial of service caused by improper handling of archive files by the Petite Plugin. A remote attacker could send a specially-crafted archive containing multiple large sectors to cause the virus engine to crash, if the attacker could convince the victim to open the malicious archive file.

*CVSS:

Base Score: 2.8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 2.1
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to Sophos Support Knowledgebase Article 7609 for upgrade information. See References.

References:

  • iDefense Labs PUBLIC ADVISORY: 10.31.06: Sophos Anti-Virus Petite File Denial of Service Vulnerability.
  • Sophos support knowledgebase Article ID: 7609 : Advisory: Vulnerabilities reported by iDefense.
  • BID-20816: Sophos Antivirus Multiple Denial of Service and Memory Corruption Vulnerabilities
  • CVE-2006-4839: Sophos Anti-Virus 5.1 allows remote attackers to cause a denial of service (memory consumption) via a file that is compressed with Petite and contains a large number of sections.
  • SA22635: Sophos Anti-Virus Petite Plugin Denial of Service Vulnerability
  • SECTRACK ID: 1017132: Sophos Anti-Virus Bugs in Processing Petite Archives, RAR Archives, and CHM Files Let Remote Users Deny Service
  • VUPEN/ADV-2006-4239: Sophos Anti-Virus Products Code Execution and Denial of Service Vulnerabilities

Platforms Affected:

  • Sophos Sophos Anti-Virus App Cntl 2000/XP/2003 6.0.4 and prior
  • Sophos Sophos Anti-Virus for AIX (PowerPC) 5.0.9 and prior
  • Sophos Sophos Anti-Virus for FreeBSD 3+ 4.10 and prior
  • Sophos Sophos Anti-Virus for FreeBSD 4.5+ 4.10 and prior
  • Sophos Sophos Anti-Virus for FreeBSD 5.2+ 4.10 and prior
  • Sophos Sophos Anti-Virus for FreeBSD 6+ 4.10 and prior
  • Sophos Sophos Anti-Virus for HP-UX (AMD64) 4.10 and prior
  • Sophos Sophos Anti-Virus for HP-UX (Itanium) 4.10 and prior
  • Sophos Sophos Anti-Virus for Linux (AMD64) 4.10 and prior
  • Sophos Sophos Anti-Virus for Linux (on-access) 5.0.9 and prior
  • Sophos Sophos Anti-Virus for Linux(Intel,glibc) 4.10
  • Sophos Sophos Anti-Virus for Linux(Intel,libc6) 4.10
  • Sophos Sophos Anti-Virus for Mac OS 8/9 4.11 and prior
  • Sophos Sophos Anti-Virus for Mac OS X 4.8.4 and prior
  • Sophos Sophos Anti-Virus for NetWare 4.10 and prior
  • Sophos Sophos Anti-Virus for Solaris 4.10 and prior Intel
  • Sophos Sophos Anti-Virus for Solaris 4.10 and prior SPARC
  • Sophos Sophos Anti-Virus for Tru64 unix (Alpha) 4.10 and prior
  • Sophos Sophos Anti-Virus for Windows 95/98/Me 4.10 and prior
  • Sophos Sophos Anti-Virus for Windows NT 4.6.4 and prior
  • Sophos Sophos Anti-Virus for Windows NT/2000/XP 4.10 and prior
  • Sophos Sophos Anti-Virus Win2000/XP/2003 5.2.6 and prior
  • Sophos Sophos Anti-Virus Win2000/XP/2003 6.0.4 and prior
  • Sophos Sophos Endpoint Sec 2000/XP/2003 6.0.4 and prior
  • Sophos Sophos Endpoint Security 6.0.4 and prior

Reported:

Oct 27, 2006

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