PT-2012-4095 · Microsoft · Windows 7+3

Published 2012-10-09 · Updated 2020-09-28 · CVE-2012-2551

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Microsoft Windows Server 2008 R2 and R2 SP1 Microsoft Windows 7 Gold and SP1

Description A denial of service issue exists due to the improper handling of a specially crafted session by the Microsoft Kerberos implementation. This can cause the system to stop responding and restart when exploited. The issue arises from a crafted session request that leads to a NULL pointer dereference and subsequent system reboot.

Recommendations For Microsoft Windows Server 2008 R2 and R2 SP1, apply the necessary patch to fix the Kerberos implementation. For Microsoft Windows 7 Gold and SP1, apply the necessary patch to fix the Kerberos implementation. As a temporary workaround, consider restricting access to the Kerberos service to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2012-2551

Affected Products

Kerberos

Windows

Windows 7

Windows Server 2008 R2

References · 9

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2551 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2012-2551 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-069 · Vendor Advisory
• http://technet.microsoft.com/en-us/security/bulletin/ms12-069 · Note
• http://us-cert.gov/cas/techalerts/TA12-283A.html · Note
• http://secunia.com/advisories/50867 · Note
• http://securityfocus.com/bid/55778 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15674 · Note
• http://securitytracker.com/id?1027620 · Note