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Vulnerability Details : CVE-2013-3661 (1 public exploit)

The 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.
Publish Date : 2013-05-24 Last Update Date : 2013-06-06
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceDirectory traversal

- Products Affected By CVE-2013-3661

# Product Type Vendor Product Version Update Edition Language
1 OS Microsoft Windows 7 - SP1 X64 * Version Details Vulnerabilities
2 OS Microsoft Windows 7 - SP1 X86 * Version Details Vulnerabilities
3 OS Microsoft Windows 8 - - X64 * Version Details Vulnerabilities
4 OS Microsoft Windows 8 - - X86 * Version Details Vulnerabilities
5 OS Microsoft Windows Rt - * * * Version Details Vulnerabilities
6 OS Microsoft Windows Server 2003 * SP2 * * Version Details Vulnerabilities
7 OS Microsoft Windows Server 2008 - SP2 * * Version Details Vulnerabilities
8 OS Microsoft Windows Server 2008 R2 SP1 * * Version Details Vulnerabilities
9 OS Microsoft Windows Server 2012 - * * * Version Details Vulnerabilities
10 OS Microsoft Windows Vista - SP2 * * Version Details Vulnerabilities
11 OS Microsoft Windows Xp * SP3 * * Version Details Vulnerabilities
12 OS Microsoft Windows Xp - SP2 X64 * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Microsoft Windows 7 2
Microsoft Windows 8 2
Microsoft Windows Rt 1
Microsoft Windows Server 2003 1
Microsoft Windows Server 2008 2
Microsoft Windows Server 2012 1
Microsoft Windows Vista 1
Microsoft Windows Xp 2

- References For CVE-2013-3661
FULLDISC 20130517 Re: exploitation ideas under memory pressure
OSVDB 93539
EXPLOIT-DB 25611 Win32k!EPATHOBJ::pprFlattenRec Uninitialized Next Pointer Testcase Author:Tavis Ormandy Release Date:2013-05-21 (windows) dos
FULLDISC 20130603 Re: exploitation ideas under memory pressure

- Metasploit Modules Related To CVE-2013-3661

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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