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Red Hat: RHSA-2010:0785-01 Moderate: Quagga DoS and Buffer Overflow

red hat
Calendar Grey October 20, 2010
Dist Redhat Esm H88
A security patch for Quagga on Red Hat Enterprise Linux addresses several moderate severity vulnerabilities. More information provided within.
Updated quagga packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5

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

Summary

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 5 it is not possible to exploit CVE-2010-2948 to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE.
Multiple NULL pointer dereference flaws were found in the way the Quagga bgpd daemon processed certain specially-crafted BGP messages. A configured BGP peer could crash bgpd on a target system via specially-crafted BGP messages. (CVE-2007-4826)
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.

Topics%20covered

Topics Covered

security advisory security update Red Hat buffer overflow DoS moderate severity Quagga

References

https://access.redhat.com/security/cve/CVE-2007-4826 https://access.redhat.com/security/cve/CVE-2010-2948 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: quagga-0.98.3-4.el4_8.1.i386.rpm quagga-contrib-0.98.3-4.el4_8.1.i386.rpm quagga-debuginfo-0.98.3-4.el4_8.1.i386.rpm quagga-devel-0.98.3-4.el4_8.1.i386.rpm
ia64: quagga-0.98.3-4.el4_8.1.ia64.rpm quagga-contrib-0.98.3-4.el4_8.1.ia64.rpm quagga-debuginfo-0.98.3-4.el4_8.1.ia64.rpm quagga-devel-0.98.3-4.el4_8.1.ia64.rpm
ppc: quagga-0.98.3-4.el4_8.1.ppc.rpm quagga-contrib-0.98.3-4.el4_8.1.ppc.rpm quagga-debuginfo-0.98.3-4.el4_8.1.ppc.rpm quagga-devel-0.98.3-4.el4_8.1.ppc.rpm
s390: quagga-0.98.3-4.el4_8.1.s390.rpm quagga-contrib-0.98.3-4.el4_8.1.s390.rpm quagga-debuginfo-0.98.3-4.el4_8.1.s390.rpm quagga-devel-0.98.3-4.el4_8.1.s390.rpm
s390x: quagga-0.98.3-4.el4_8.1.s390x.rpm quagga-contrib-0.98.3-4.el4_8.1.s390x.rpm quagga-debuginfo-0.98.3-4.el4_8.1.s390x.rpm quagga-devel-0.98.3-4.el4_8.1.s390x.rpm
x86_64: quagga-0.98.3-4.el4_8.1.x86_64.rpm quagga-contrib-0.98.3-4.el4_8.1.x86_64.rpm quagga-debuginfo-0.98.3-4.el4_8.1.x86_64.rpm quagga-devel-0.98.3-4.el4_8.1.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386: quagga-0.98.3-4.el4_8.1.i386.rpm quagga-contrib-0.98.3-4.el4_8.1.i386.rpm quagga-debuginfo-0.98.3-4.el4_8.1.i386.rpm quagga-devel-0.98.3-4.el4_8.1.i386.rpm
x86_64:

Read the Full Advisory


Advisory ID: RHSA-2010:0785-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0785.html
Issue date: 2010-10-20

Topic

Updated quagga packages that fix multiple security issues are now availablefor Red Hat Enterprise Linux 4 and 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat buffer overflow DoS moderate severity Quagga

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Bugs Fixed

285691 - CVE-2007-4826 quagga bgpd DoS

626783 - CVE-2010-2948 Quagga (bgpd): Stack buffer overflow by processing certain Route-Refresh messages

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