Vulnerability Description
A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the "DestPos" variable, which allows the attacker to write out of bounds when setting Mem[DestPos].
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sophos | Threat Detection Engine | <= 3.36.2 |
| Rarlab | Unrar | <= 5.5.4 |
Related Weaknesses (CWE)
References
- http://securitytracker.com/id?1027725Third Party Advisory
- http://telussecuritylabs.com/threats/show/TSL20121207-01Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1286ExploitThird Party Advisory
- https://community.sophos.com/kb/en-us/118424#sixVendor Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10205
- https://lock.cmpxchg8b.com/sophailv2.pdfThird Party Advisory
- https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/Vendor Advisory
- https://security.gentoo.org/glsa/201708-05
- https://security.gentoo.org/glsa/201709-24
- https://security.gentoo.org/glsa/201804-16
- http://securitytracker.com/id?1027725Third Party Advisory
- http://telussecuritylabs.com/threats/show/TSL20121207-01Third Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1286ExploitThird Party Advisory
- https://community.sophos.com/kb/en-us/118424#sixVendor Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10205
FAQ
What is CVE-2012-6706?
CVE-2012-6706 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. A...
How severe is CVE-2012-6706?
CVE-2012-6706 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2012-6706?
Check the references section above for vendor advisories and patch information. Affected products include: Sophos Threat Detection Engine, Rarlab Unrar.