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Insecure Library Loading
Highly critical

Microsoft Windows Kernel-Mode Drivers Three Vulnerabilities

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Description


Multiple vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges and by malicious people to compromise a user's system.

1) A use-after-free error exists within win32k.sys when handling certain objects in memory.

2) Another use-after-free error exists within win32k.sys when handling certain objects in memory.

3) An error exists within the kernel when parsing TrueType fonts and can be exploited via a specially crafted font file.

Successful exploitation of this vulnerability may allow execution of arbitrary code.


Solution:
Apply updates.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Reported by the vendor
2) Matthew Jurczyk, Google
3) Eetu Luodemaa and Joni Vahamaki, Documill via Chromium Security Rewards Program

Original Advisory:
Microsoft (KB2761226):
http://technet.microsoft.com/en-us/security/bulletin/ms12-075

Matthew Jurczyk:
http://j00ru.vexillium.org/?p=1479

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Windows Kernel-Mode Drivers Three Vulnerabilities

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