CVE-2013-3661

Summary

CVECVE-2013-3661
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-05-24 20:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe EPATHOBJ::bFlatten function in win32k.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT does not check whether linked-list traversal is continually accessing the same list member, which allows local users to cause a denial of service (infinite traversal) via vectors that trigger a crafted PATHRECORD chain.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

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

Problem Types: CWE-22 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Microsoft Windows 7 - sp1 x64 All
Operating System Microsoft Windows 7 - sp1 x86 All
Operating System Microsoft Windows 8 - - x64 All
Operating System Microsoft Windows 8 - - x86 All
Operating System Microsoft Windows Rt - All All All
Operating System Microsoft Windows Server 2003 All sp2 All All
Operating System Microsoft Windows Server 2008 - sp2 All All
Operating System Microsoft Windows Server 2008 r2 sp1 All All
Operating System Microsoft Windows Server 2012 - All All All
Operating System Microsoft Windows Vista - sp2 All All
Operating System Microsoft Windows Xp All sp3 All All
Operating System Microsoft Windows Xp - sp2 x64 All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Google engineer publicizes Windows zero-day bug, claims Microsoft is 'difficult to work with' | The Verge af854a3a-2127-422b-91ae-364da2661108 www.theverge.com
win32k!EPATHOBJ::pprFlattenRec Uninitialized Next Pointer Testcase af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com
0day: Windows Kernel EPATHOBJ Vulnerability : netsec af854a3a-2127-422b-91ae-364da2661108 www.reddit.com
Tavis Ormandy na Twitterze: "I just realised a really cute trick to exploit the EPATHOBJ bug, make the list cycle, then a thread can clean up the pool, and patch it!" af854a3a-2127-422b-91ae-364da2661108 twitter.com
www.osvdb.org/93539 af854a3a-2127-422b-91ae-364da2661108 www.osvdb.org
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com
Google engineer bashes Microsoft's handling of security researchers, discloses Windows zero-day | Computerworld af854a3a-2127-422b-91ae-364da2661108 www.computerworld.com
Security Advisory SA53435 - Microsoft Windows Kernel Multiple Vulnerabilities - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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