4
CVSSv2

CVE-2013-6999

Published: 07/12/2013 Updated: 11/04/2024
CVSS v2 Base Score: 4 | Impact Score: 6.9 | Exploitability Score: 1.9
VMScore: 356
Vector: AV:L/AC:H/Au:N/C:N/I:N/A:C

Vulnerability Summary

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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microsoft windows server 2008