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



Secunia integrated with Microsoft WSUS 
http://secunia.com/blog/71/



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

TITLE:
Squid DNS Packet Processing Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA38451

VERIFY ADVISORY:
http://secunia.com/advisories/38451/

DESCRIPTION:
A vulnerability has been reported in Squid, which can be exploited by
malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an assertion error when processing
certain DNS packets, which can be exploited by e.g. sending
header-only DNS packets.

Successful exploitation requires that the attacker knows Squid's
receiving port.

SOLUTION:
Update to Squid 3.0.STABLE22 or apply patch.
http://www.squid-cache.org/Download/

Patch:
http://www.squid-cache.org/Versions/v3/3.0/changesets/squid-3.0-9151.patch

NOTE: The vulnerability can be partially mitigated by setting the
"ignore_unknown_nameservers" option to "on" (default).

PROVIDED AND/OR DISCOVERED BY:
Fabian Yamaguchi

ORIGINAL ADVISORY:
Squid:
http://www.squid-cache.org/Advisories/SQUID-2010_1.txt

Fabian Yamaguchi:
http://events.ccc.de/congress/2009/Fahrplan/attachments/1483_26c3_ipv4_fuckups.pdf

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

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.

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

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

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