Issued:

2010-12-06

Updated:

2010-12-06

RHSA-2010:0945 - Moderate: quagga security update

Synopsis

Moderate: quagga security update

Type/Severity

Security Advisory Moderate

Topic

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.

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.

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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• quagga-devel-0.99.15-5.el6_0.1.ppc64.rpm
• quagga-debuginfo-0.99.15-5.el6_0.1.ppc.rpm
• quagga-0.99.15-5.el6_0.1.s390x.rpm
• quagga-debuginfo-0.99.15-5.el6_0.1.ppc64.rpm
• quagga-devel-0.99.15-5.el6_0.1.i686.rpm
• quagga-contrib-0.99.15-5.el6_0.1.s390x.rpm
• quagga-contrib-0.99.15-5.el6_0.1.ppc64.rpm
• quagga-0.99.15-5.el6_0.1.src.rpm
• quagga-contrib-0.99.15-5.el6_0.1.x86_64.rpm
• quagga-devel-0.99.15-5.el6_0.1.s390.rpm
• quagga-debuginfo-0.99.15-5.el6_0.1.x86_64.rpm
• quagga-debuginfo-0.99.15-5.el6_0.1.s390.rpm
• quagga-debuginfo-0.99.15-5.el6_0.1.i686.rpm
• quagga-devel-0.99.15-5.el6_0.1.x86_64.rpm
• quagga-0.99.15-5.el6_0.1.x86_64.rpm
• quagga-debuginfo-0.99.15-5.el6_0.1.s390x.rpm
• quagga-0.99.15-5.el6_0.1.ppc64.rpm
• quagga-devel-0.99.15-5.el6_0.1.s390x.rpm
• quagga-contrib-0.99.15-5.el6_0.1.i686.rpm
• quagga-devel-0.99.15-5.el6_0.1.ppc.rpm
• quagga-0.99.15-5.el6_0.1.i686.rpm

Fixes

• This content is not included.BZ - 626783
• This content is not included.BZ - 626795

CVEs

• CVE-2010-2948
• CVE-2010-2949

References

• http://www.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.