CVE-2011-1235 Use after free in n/a
Local attackers can gain privileges via a crafted application exploiting a use-after-free flaw in the Windows kernel driver win32k.sys.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2011-1235?
CVE-2011-1235 is a high-severity use after free vulnerability in Microsoft Windows 2003 Server, published on 13 Apr 2011. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Use-after-free vulnerability in win32k.sys in the kernel-mode drivers 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 allows local users to gain privileges via a crafted application that leverages incorrect driver object management, a different vulnerability than other "Vulnerability Type 1" CVEs listed in MS11-034, aka "Win32k Use After Free Vulnerability."
Weakness: CWE-399
Which versions are affected by CVE-2011-1235?
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-2011-1235?
No fix has been published for CVE-2011-1235 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2011-1235 being exploited?
There is no known exploitation of CVE-2011-1235 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 2003 Server
Sources
Also known as GHSA-f2rw-gwwh-m9j4.