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

Want a new IT Security job?

Vacant positions at Secunia:
http://secunia.com/secunia_vacancies/

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

TITLE:
HP-UX Unspecified TCP/IP Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA15123

VERIFY ADVISORY:
http://secunia.com/advisories/15123/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
HP-UX 11.x
http://secunia.com/product/138/

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

The vulnerability is caused due to an unspecified error in the PMTU
discovery processing when receiving a specially crafted packet on any
open connection.

Successful exploitation causes a DoS and requires a reboot of the
system to regain functionality.

The vulnerability affects HP-UX B.11.00, B.11.04, B.11.11, B.11.22,
and B.11.23 running TCP/IP (IPv4).

SOLUTION:
The vendor recommends setting the "ip_pmtu_strategy" parameter to 0
or 3 (see vendor advisory for more information).

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
SSRT5954:
http://itrc.hp.com/service/cki/docDisplay.do?docId=HPSBUX01137

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

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

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

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

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