openSUSE Security Update : dhcp (openSUSE-SU-2011:1021-1)

This script is Copyright (C) 2014-2016 Tenable Network Security, Inc.


Synopsis :

The remote openSUSE host is missing a security update.

Description :

This update of dhcp fixes two Denial of Service (CVE-2011-2748,
CVE-2011-2749) vulnerabilities caused by specially crafted BOOTP
packets.

Also following bugs were fixed :

- Moved server pid files into chroot directory even chroot
is not used and create a link in /var/run, so it can
write one when started as user without chroot and avoid
stop problems when the chroot sysconfig setting changed
(bnc#712438).

- Fixed dhclient-script to not remove alias IP when it
didn't changed to not wipe out iptables connmark when
renewing the lease (bnc#700771). Thanks to James Carter
for the patch.

- Removed GPL licensed files (bind-*/contrib/dbus) from
bind.tgz to ensure, they're not used to build non-GPL
dhcp.

- Disabled log-info level messages in dhclient(6) quiet
mode to avoid excessive logging of non-critical messages
(bnc#711420).

See also :

http://lists.opensuse.org/opensuse-updates/2011-09/msg00014.html
https://bugzilla.novell.com/show_bug.cgi?id=700771
https://bugzilla.novell.com/show_bug.cgi?id=711420
https://bugzilla.novell.com/show_bug.cgi?id=712438
https://bugzilla.novell.com/show_bug.cgi?id=712653
https://bugzilla.novell.com/show_bug.cgi?id=714004

Solution :

Update the affected dhcp packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: SuSE Local Security Checks

Nessus Plugin ID: 75814 ()

Bugtraq ID:

CVE ID: CVE-2011-2748
CVE-2011-2749

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