A vulnerability has been discovered in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to a use-after-free error in win32k.sys within NtUserCheckAccessForIntegrityLevel() as a reference counter to an object is incorrectly decremented twice when a call to LockProcessByClientId() fails.
Successful exploitation may allow execution of arbitrary code with kernel privileges.
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 firstname.lastname@example.org
Subject: Microsoft Windows NtUserCheckAccessForIntegrityLevel Use-After-Free
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.