[PCWorks] Windows TCP/IP Stack Teardown Sequence Handling Denial of Service Vulnerability
- From: "Clint Hamilton-PCWorks Admin" <PCWorks@xxxxxxxxxxxxxxxxxxxxxxxx>
- To: "PCWorks@xxxxxxxxxxxxx" <pcworks@xxxxxxxxxxxxx>
- Date: Wed, 13 Feb 2013 00:14:36 -0600
TITLE:
Microsoft Windows TCP/IP Stack Teardown Sequence Handling
Denial of
Service Vulnerability
Criticality level: Highly critical
Impact: DoS
Where: From remote
Operating Systems:
Microsoft Windows 7
Microsoft Windows 8
Microsoft Windows RT
Microsoft Windows Server 2008
Microsoft Windows Server 2012
Microsoft Windows Vista
SECUNIA ADVISORY ID:
http://secunia.com/advisories/52158/
DESCRIPTION:
A vulnerability has been reported in Microsoft Windows, which
can be
exploited by malicious people to cause a DoS (Denial of
Service).
The vulnerability is caused due to an error within the TCP/IP
stack,
which remains in TCP FIN_WAIT_2 state after receiving an ACK to
the
FIN packet when handling a teardown sequence. This can be
exploited
to exhaust the non-paged pool and render the system unusable or
trigger a restart.
Successful exploitation requires having the victim machine
initiate
the teardown sequence.
SOLUTION:
Apply updates.
ORIGINAL ADVISORY:
MS13-018 (KB2790655):
https://technet.microsoft.com/en-us/security/bulletin/ms13-018
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