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

Hardcore Disassembler / Reverse Engineer Wanted!

Want to work with IDA and BinDiff?
Want to write PoC's and Exploits?

Your nationality is not important.
We will get you a work permit, find an apartment, and offer a
relocation compensation package.

http://secunia.com/hardcore_disassembler_and_reverse_engineer/

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

TITLE:
FreeBSD "ppp" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA21587

VERIFY ADVISORY:
http://secunia.com/advisories/21587/

CRITICAL:
Moderately critical

IMPACT:
Exposure of sensitive information, DoS, System access

WHERE:
>From remote

OPERATING SYSTEM:
FreeBSD 6.x
http://secunia.com/product/6778/
FreeBSD 5.x
http://secunia.com/product/1132/
FreeBSD 4.x
http://secunia.com/product/139/

DESCRIPTION:
A vulnerability has been reported in FreeBSD, which can be exploited
by malicious people to cause a DoS (Denial of Service), gain
knowledge about potentially sensitive information, and compromise a
vulnerable system.

The vulnerability is caused due to boundary errors within the ppp
driver when processing LCP (Link Control Protocol) options and can be
exploited by sending specially crafted LCP packets.

The vulnerability has been reported for all FreeBSD releases.

SOLUTION:
Update FreeBSD or apply patch.

Fixed versions:
2006-08-23 22:01:44 UTC (RELENG_6, 6.1-STABLE)
2006-08-23 22:02:25 UTC (RELENG_6_1, 6.1-RELEASE-p4)
2006-08-23 22:02:52 UTC (RELENG_6_0, 6.0-RELEASE-p10)
2006-08-23 22:03:55 UTC (RELENG_5, 5.5-STABLE)
2006-08-23 22:04:28 UTC (RELENG_5_5, 5.5-RELEASE-p3)
2006-08-23 22:04:58 UTC (RELENG_5_4, 5.4-RELEASE-p17)
2006-08-23 22:05:49 UTC (RELENG_5_3, 5.3-RELEASE-p32)
2006-08-23 22:06:08 UTC (RELENG_4, 4.11-STABLE)
2006-08-23 22:06:40 UTC (RELENG_4_11, 4.11-RELEASE-p20)

Patch for FreeBSD 4.x:
http://security.FreeBSD.org/patches/SA-06:18/ppp4x.patch
http://security.FreeBSD.org/patches/SA-06:18/ppp4x.patch.asc

Patch for FreeBSD 5.3:
http://security.FreeBSD.org/patches/SA-06:18/ppp53.patch
http://security.FreeBSD.org/patches/SA-06:18/ppp53.patch.asc

Patch for FreeBSD 5.4, 5.5, and 6.x:
http://security.FreeBSD.org/patches/SA-06:18/ppp.patch
http://security.FreeBSD.org/patches/SA-06:18/ppp.patch.asc

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Martin Husemann and Pavel Cahyna.

ORIGINAL ADVISORY:
http://security.freebsd.org/advisories/FreeBSD-SA-06:18.ppp.asc

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

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.

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

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

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