----------------------------------------------------------------------

The Secunia CSI 5.0 Beta - now available for testing
Find out more, take a free test drive, and share your opinion with us: 
http://secunia.com/blog/242 

----------------------------------------------------------------------

TITLE:
Microsoft Windows TCP/IP Stack Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA45500

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45500/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45500

RELEASE DATE:
2011-08-12

DISCUSS ADVISORY:
http://secunia.com/advisories/45500/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/45500/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=45500

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Two vulnerabilities have been reported in Microsoft Windows, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

1) An error in the TCP/IP stack (Tcpip.sys) when parsing received
ICMP messages can be exploited to cause a system to stop responding
or restart via a sequence of specially crafted ICMP messages.

2) An error in the TCP/IP stack (Tcpip.sys) when parsing URLs can be
exploited to cause a system to stop responding or restart via a
specially crafted URL request to a system serving web content with
URL-based QoS (Quality of Service) enabled (disabled by default).

SOLUTION:
Apply patches.

Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
MS11-064 (KB2563894):
http://www.microsoft.com/technet/security/bulletin/ms11-064.mspx

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------