====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: quagga security update
Advisory ID:       RHSA-2010:0945-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2010:0945.html
Issue date:        2010-12-06
CVE Names:         CVE-2010-2948 CVE-2010-2949 
====================================================================
1. Summary:

Updated quagga packages that fix two security issues are now available for
Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

Quagga is a TCP/IP based routing software suite. The Quagga bgpd daemon
implements the BGP (Border Gateway Protocol) routing protocol.

A stack-based buffer overflow flaw was found in the way the Quagga bgpd
daemon processed certain BGP Route Refresh (RR) messages. A configured BGP
peer could send a specially-crafted BGP message, causing bgpd on a target
system to crash or, possibly, execute arbitrary code with the privileges of
the user running bgpd. (CVE-2010-2948)

Note: On Red Hat Enterprise Linux 6 it is not possible to exploit
CVE-2010-2948 to run arbitrary code as the overflow is blocked by
FORTIFY_SOURCE.

A NULL pointer dereference flaw was found in the way the Quagga bgpd daemon
parsed the paths of autonomous systems (AS). A configured BGP peer could
crash bgpd on a target system via a specially-crafted BGP message.
(CVE-2010-2949)

Users of quagga should upgrade to these updated packages, which contain
backported patches to correct these issues. After installing the updated
packages, the bgpd daemon must be restarted for the update to take effect.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at

5. Bugs fixed (http://bugzilla.redhat.com/):

626783 - CVE-2010-2948 Quagga (bgpd): Stack buffer overflow by processing certain Route-Refresh messages
626795 - CVE-2010-2949 Quagga (bgpd): DoS (crash) while processing certain BGP update AS path messages

6. Package List:

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
quagga-0.99.15-5.el6_0.1.i686.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.i686.rpm

ppc64:
quagga-0.99.15-5.el6_0.1.ppc64.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.ppc64.rpm

s390x:
quagga-0.99.15-5.el6_0.1.s390x.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.s390x.rpm

x86_64:
quagga-0.99.15-5.el6_0.1.x86_64.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:

i386:
quagga-contrib-0.99.15-5.el6_0.1.i686.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.i686.rpm
quagga-devel-0.99.15-5.el6_0.1.i686.rpm

ppc64:
quagga-contrib-0.99.15-5.el6_0.1.ppc64.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.ppc.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.ppc64.rpm
quagga-devel-0.99.15-5.el6_0.1.ppc.rpm
quagga-devel-0.99.15-5.el6_0.1.ppc64.rpm

s390x:
quagga-contrib-0.99.15-5.el6_0.1.s390x.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.s390.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.s390x.rpm
quagga-devel-0.99.15-5.el6_0.1.s390.rpm
quagga-devel-0.99.15-5.el6_0.1.s390x.rpm

x86_64:
quagga-contrib-0.99.15-5.el6_0.1.x86_64.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.i686.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.x86_64.rpm
quagga-devel-0.99.15-5.el6_0.1.i686.rpm
quagga-devel-0.99.15-5.el6_0.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
quagga-0.99.15-5.el6_0.1.i686.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.i686.rpm

x86_64:
quagga-0.99.15-5.el6_0.1.x86_64.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:

i386:
quagga-contrib-0.99.15-5.el6_0.1.i686.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.i686.rpm
quagga-devel-0.99.15-5.el6_0.1.i686.rpm

x86_64:
quagga-contrib-0.99.15-5.el6_0.1.x86_64.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.i686.rpm
quagga-debuginfo-0.99.15-5.el6_0.1.x86_64.rpm
quagga-devel-0.99.15-5.el6_0.1.i686.rpm
quagga-devel-0.99.15-5.el6_0.1.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-2948.html
https://www.redhat.com/security/data/cve/CVE-2010-2949.html
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2010 Red Hat, Inc.