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TITLE:
FreeBSD netgraph / bluetooth Sockets Privilege Escalation

SECUNIA ADVISORY ID:
SA33209

VERIFY ADVISORY:
http://secunia.com/advisories/33209/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

OPERATING SYSTEM:
FreeBSD 6.x
http://secunia.com/advisories/product/6778/

DESCRIPTION:
FreeBSD has acknowledged a vulnerability, which can be exploited by
malicious, local users to gain escalated privileges.

The vulnerability is caused due to the kernel implementation of
netgraph and bluetooth sockets improperly initializing certain
function pointers. This can be exploited to execute arbitrary code in
kernel space.

SOLUTION:
Update FreeBSD or apply patches.

Fixed versions:
2008-12-23 01:23:09 UTC (RELENG_7, 7.1-PRERELEASE)
2008-12-23 01:23:09 UTC (RELENG_7_1, 7.1-RC2)
2008-12-23 01:23:09 UTC (RELENG_7_0, 7.0-RELEASE-p7)
2008-12-23 01:23:09 UTC (RELENG_6, 6.4-STABLE)
2008-12-23 01:23:09 UTC (RELENG_6_4, 6.4-RELEASE-p1)
2008-12-23 01:23:09 UTC (RELENG_6_3, 6.3-RELEASE-p7)

Patch for FreeBSD 6.3 and 6.4:
http://security.FreeBSD.org/patches/SA-08:13/protosw6x.patch

Patch for FreeBSD 7.0:
http://security.FreeBSD.org/patches/SA-08:13/protosw.patch

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Christer Oberg.

ORIGINAL ADVISORY:
http://security.freebsd.org/advisories/FreeBSD-SA-08:13.protosw.asc

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