Integer overflow in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted TrueType font file that triggers incorrect memory allocation, aka "Font Resource Refcount Integer Overflow Vulnerability."
Weaknesses in this category are related to improper management of system resources.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://www.us-cert.gov/cas/techalerts/TA12-164A.html | third party advisory us government resource |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15510 | vdb entry signature |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-041 | vendor advisory |