CVE-2011-0661 Memory corruption in n/a
Remote attackers can execute arbitrary code on Windows systems by sending malformed SMB requests to the SMB Server service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2011-0661?
CVE-2011-0661 is a critical memory corruption vulnerability in Microsoft Windows 2003 Server, published on 13 Apr 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The SMB Server service in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly validate fields in SMB requests, which allows remote attackers to execute arbitrary code via a malformed request in a (1) SMBv1 or (2) SMBv2 packet, aka "SMB Transaction Parsing Vulnerability."
Weakness: CWE-20
Which versions are affected by CVE-2011-0661?
It affects 6 products.
Products include Microsoft Windows 2003 Server, Microsoft Windows 7, Microsoft Windows Server 2003, Microsoft Windows Server 2008, Microsoft Windows Vista, Microsoft Windows Xp.
How do I fix CVE-2011-0661?
No fix has been published for CVE-2011-0661 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2011-0661 being exploited?
There is no known exploitation of CVE-2011-0661 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 2003 Server
Sources
Also known as GHSA-6qmw-gx3w-4r8v.