CVE-2011-1873 Memory corruption in n/a

What is CVE-2011-1873?

CVE-2011-1873 is a critical memory corruption vulnerability in Microsoft Windows 7, published on 16 Jun 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 on 64-bit platforms does not properly validate pointers during the parsing of OpenType (aka OTF) fonts, which allows remote attackers to execute arbitrary code via a crafted font file, aka "Win32k OTF Validation Vulnerability."

Weakness: CWE-20

Which versions are affected by CVE-2011-1873?

It affects 5 products.

Products include Microsoft Windows 7, Microsoft Windows Server 2003, Microsoft Windows Server 2008, Microsoft Windows Vista, Microsoft Windows Xp.

How do I fix CVE-2011-1873?

No fix has been published for CVE-2011-1873 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-2011-1873 being exploited?

There is no known exploitation of CVE-2011-1873 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Windows 7

• CVE-2015-1635 Microsoft HTTP.sys Remote Code Execution Exploited Critical 9.8
• CVE-2015-2360 Microsoft Win32k Privilege Escalation Exploited High 8.8
• CVE-2014-6324 Microsoft Kerberos Key Distribution Center (KDC) Privilege Escalation Exploited High 8.8
• CVE-2014-6332 Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution Exploited High 8.8
• CVE-2014-4148 Microsoft Windows Remote Code Execution Exploited High 8.8

All Microsoft Windows 7 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8pff-c9jf-g9ff.