Unrated severityNVD Advisory· Published Dec 7, 2013· Updated Jun 17, 2026
CVE-2013-6999
CVE-2013-6999
Description
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.
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Affected products
2SP2+ 1 more
- (no CPE)range: SP2
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
3- pastebin.com/raw.phpnvdExploit
- secunia.com/advisories/55633nvdVendor Advisory
- www.securityfocus.com/bid/64057nvd
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