VulnerabilityModified

CVE-2013-6999

MEDIUM 4.0EPSS 1.96%

Does this matter?

Lower severity and a low EPSS score (1.96%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 2.0: 4.0 MEDIUMAV:L/AC:H/Au:N/C:N/I:N/A:C
EPSS: 1.96% probability · 79th percentile
CISA KEV: Not listed
Affected: microsoft/windows server 2008
Source: cve@mitre.org

References

http://pastebin.com/raw.php?i=we0ZSQC0Exploit
http://secunia.com/advisories/55633Vendor Advisory
http://www.securityfocus.com/bid/64057
http://pastebin.com/raw.php?i=we0ZSQC0Exploit
http://secunia.com/advisories/55633Vendor Advisory
http://www.securityfocus.com/bid/64057

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.