CVE-2013-3661 Denial of service in n/a
Local attackers can cause a denial of service in Windows via crafted PATHRECORD chains triggering infinite traversal in win32k.sys.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2013-3661?
CVE-2013-3661 is a medium-severity denial of service vulnerability in Microsoft Windows 7, published on 24 May 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2013-3661?
It affects 8 products.
Products include Microsoft Windows 7, Microsoft Windows 8, Microsoft Windows Rt, Microsoft Windows Server 2003, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.
How do I fix CVE-2013-3661?
No fix has been published for CVE-2013-3661 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2013-3661 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2013-3661 exists.
Public exploit code: 3 Exploit-DB entries.
Other vulnerabilities in Microsoft Windows 7
- CVE-2015-1635 Microsoft HTTP.sys Remote Code Execution
- CVE-2015-2360 Microsoft Win32k Privilege Escalation
- CVE-2014-6324 Microsoft Kerberos Key Distribution Center (KDC) Privilege Escalation
- CVE-2014-6332 Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution
- CVE-2014-4148 Microsoft Windows Remote Code Execution
Sources
Also known as GHSA-qx37-q6px-wm6q.