Vulnerability Description
The EPATHOBJ::bFlatten function in win32k.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT does not check whether linked-list traversal is continually accessing the same list member, which allows local users to cause a denial of service (infinite traversal) via vectors that trigger a crafted PATHRECORD chain.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 7 | - |
| Microsoft | Windows 8 | - |
| Microsoft | Windows Rt | - |
| Microsoft | Windows Server 2003 | All versions |
| Microsoft | Windows Server 2008 | - |
| Microsoft | Windows Server 2012 | - |
| Microsoft | Windows Vista | - |
| Microsoft | Windows Xp | All versions |
Related Weaknesses (CWE)
References
- http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0094.html
- http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0006.html
- http://secunia.com/advisories/53435Vendor Advisory
- http://twitter.com/taviso/statuses/335557286657400832
- http://www.computerworld.com/s/article/9239477
- http://www.exploit-db.com/exploits/25611/
- http://www.osvdb.org/93539
- http://www.reddit.com/r/netsec/comments/1eqh66/0day_windows_kernel_epathobj_vuln
- http://www.theverge.com/2013/5/23/4358400/google-engineer-bashes-microsoft-discl
- http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0094.html
- http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0006.html
- http://secunia.com/advisories/53435Vendor Advisory
- http://twitter.com/taviso/statuses/335557286657400832
- http://www.computerworld.com/s/article/9239477
- http://www.exploit-db.com/exploits/25611/
FAQ
What is CVE-2013-3661?
CVE-2013-3661 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The EPATHOBJ::bFlatten function in win32k.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Ser...
How severe is CVE-2013-3661?
CVE-2013-3661 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-3661?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 7, Microsoft Windows 8, Microsoft Windows Rt, Microsoft Windows Server 2003, Microsoft Windows Server 2008.