CVE-2013-6999
Windows Server 2008 SP2 - Denial of Service via NtUserValidateHandleSecure Call
Title source: llmDescription
The IsHandleEntrySecure function in win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2008 SP2 does not properly validate the tagPROCESSINFO pW32Job field, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted NtUserValidateHandleSecure call for an owned object. NOTE: the vendor reportedly disputes the significance of this report, stating that "it appears to be a local DOS ... we don't consider it a security vulnerability.
References (3)
Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/64057
Exploit x_refsource_misc
http://pastebin.com/raw.php?i=we0ZSQC0
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/55633
Scores
EPSS
0.0196
EPSS Percentile
78.3%
Details
Status
published
Products (1)
microsoft/windows_server_2008
Published
Dec 07, 2013
Tracked Since
Feb 18, 2026