VulnerabilityModified

CVE-2011-1229

HIGH 7.2EPSS 1.47%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, a different vulnerability than other "Vulnerability Type 2" CVEs listed in MS11-034, aka "Win32k Null Pointer De-reference Vulnerability."

CVSS 2.0: 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS: 1.47% probability · 72th percentile
CISA KEV: Not listed
Weakness: CWE-476
Affected: microsoft/windows 2003 server · microsoft/windows 7 · microsoft/windows server 2003 · microsoft/windows server 2008 · microsoft/windows vista · microsoft/windows xp · avaya/agent access · avaya/aura conferencing standard edition · avaya/basic call management system reporting desktop · avaya/call management server supervisor · avaya/callpilot · avaya/callvisor asai lan · avaya/communication server 1000 telephony manager · avaya/computer telephony · avaya/contact center express · avaya/customer interaction express · avaya/enterprise manager · avaya/integrated management · avaya/interaction center · avaya/ip agent · +15 more
Source: secure@microsoft.com

References

http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspxVendor Advisory
http://osvdb.org/71735Broken Link
http://secunia.com/advisories/44156Third Party Advisory
http://support.avaya.com/css/P8/documents/100133352Third Party Advisory
http://www.securityfocus.com/bid/47229Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1025345Third Party Advisory, VDB Entry
http://www.us-cert.gov/cas/techalerts/TA11-102A.htmlThird Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2011/0952Broken Link
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/66411VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12503Third Party Advisory
http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspxVendor Advisory
http://osvdb.org/71735Broken Link
http://secunia.com/advisories/44156Third Party Advisory
http://support.avaya.com/css/P8/documents/100133352Third Party Advisory
http://www.securityfocus.com/bid/47229Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1025345Third Party Advisory, VDB Entry
http://www.us-cert.gov/cas/techalerts/TA11-102A.htmlThird Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2011/0952Broken Link
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/66411VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12503Third Party Advisory

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