Issued:

2012-09-12

Updated:

2012-09-12

RHSA-2012:1259 - Moderate: quagga security update

Synopsis

Moderate: quagga security update

Type/Severity

Security Advisory Moderate

Topic

Updated quagga packages that fix multiple 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. The Quagga ospfd and ospf6d daemons implement the OSPF (Open Shortest Path First) routing protocol.

A heap-based buffer overflow flaw was found in the way the bgpd daemon processed malformed Extended Communities path attributes. An attacker 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. The UPDATE message would have to arrive from an explicitly configured BGP peer, but could have originated elsewhere in the BGP network. (CVE-2011-3327)

A stack-based buffer overflow flaw was found in the way the ospf6d daemon processed malformed Link State Update packets. An OSPF router could use this flaw to crash ospf6d on an adjacent router. (CVE-2011-3323)

A flaw was found in the way the ospf6d daemon processed malformed link state advertisements. An OSPF neighbor could use this flaw to crash ospf6d on a target system. (CVE-2011-3324)

A flaw was found in the way the ospfd daemon processed malformed Hello packets. An OSPF neighbor could use this flaw to crash ospfd on a target system. (CVE-2011-3325)

A flaw was found in the way the ospfd daemon processed malformed link state advertisements. An OSPF router in the autonomous system could use this flaw to crash ospfd on a target system. (CVE-2011-3326)

An assertion failure was found in the way the ospfd daemon processed certain Link State Update packets. An OSPF router could use this flaw to cause ospfd on an adjacent router to abort. (CVE-2012-0249)

A buffer overflow flaw was found in the way the ospfd daemon processed certain Link State Update packets. An OSPF router could use this flaw to crash ospfd on an adjacent router. (CVE-2012-0250)

Two flaws were found in the way the bgpd daemon processed certain BGP OPEN messages. A configured BGP peer could cause bgpd on a target system to abort via a specially-crafted BGP OPEN message. (CVE-2012-0255, CVE-2012-1820)

Red Hat would like to thank CERT-FI for reporting CVE-2011-3327, CVE-2011-3323, CVE-2011-3324, CVE-2011-3325, and CVE-2011-3326; and the CERT/CC for reporting CVE-2012-0249, CVE-2012-0250, CVE-2012-0255, and CVE-2012-1820. CERT-FI acknowledges Riku Hietamäki, Tuomo Untinen and Jukka Taimisto of the Codenomicon CROSS project as the original reporters of CVE-2011-3327, CVE-2011-3323, CVE-2011-3324, CVE-2011-3325, and CVE-2011-3326. The CERT/CC acknowledges Martin Winter at OpenSourceRouting.org as the original reporter of CVE-2012-0249, CVE-2012-0250, and CVE-2012-0255, and Denis Ovsienko as the original reporter of CVE-2012-1820.

Users of quagga should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the bgpd, ospfd, and ospf6d daemons will be restarted automatically.

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 https://access.redhat.com/knowledge/articles/11258

Affected Products

Updated Packages

• quagga-devel-0.99.15-7.el6_3.2.ppc64.rpm
• quagga-debuginfo-0.99.15-7.el6_3.2.ppc.rpm
• quagga-0.99.15-7.el6_3.2.i686.rpm
• quagga-debuginfo-0.99.15-7.el6_3.2.ppc64.rpm
• quagga-debuginfo-0.99.15-7.el6_3.2.s390.rpm
• quagga-debuginfo-0.99.15-7.el6_3.2.i686.rpm
• quagga-contrib-0.99.15-7.el6_3.2.x86_64.rpm
• quagga-devel-0.99.15-7.el6_3.2.x86_64.rpm
• quagga-0.99.15-7.el6_3.2.x86_64.rpm
• quagga-0.99.15-7.el6_3.2.ppc64.rpm
• quagga-contrib-0.99.15-7.el6_3.2.i686.rpm
• quagga-devel-0.99.15-7.el6_3.2.ppc.rpm
• quagga-devel-0.99.15-7.el6_3.2.i686.rpm
• quagga-0.99.15-7.el6_3.2.src.rpm
• quagga-devel-0.99.15-7.el6_3.2.s390x.rpm
• quagga-debuginfo-0.99.15-7.el6_3.2.x86_64.rpm
• quagga-contrib-0.99.15-7.el6_3.2.s390x.rpm
• quagga-contrib-0.99.15-7.el6_3.2.ppc64.rpm
• quagga-devel-0.99.15-7.el6_3.2.s390.rpm
• quagga-0.99.15-7.el6_3.2.s390x.rpm
• quagga-debuginfo-0.99.15-7.el6_3.2.s390x.rpm

Fixes

• This content is not included.BZ - 738393
• This content is not included.BZ - 738394
• This content is not included.BZ - 738396
• This content is not included.BZ - 738398
• This content is not included.BZ - 738400
• This content is not included.BZ - 802781
• This content is not included.BZ - 802827
• This content is not included.BZ - 802829
• This content is not included.BZ - 817580

CVEs

• CVE-2011-3327
• CVE-2011-3326
• CVE-2011-3325
• CVE-2011-3324
• CVE-2011-3323
• CVE-2012-0250
• CVE-2012-0249
• CVE-2012-1820
• CVE-2012-0255

References

• https://access.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.