RedHat: Moderate: zebra security update
Summary
Summary
GNU Zebra is a free software that manages TCP/IP based routing protocol. An information disclosure flaw was found in the way GNU Zebra interprets RIP REQUEST packets. RIPd in GNU Zebra will respond to RIP REQUEST packets for RIP versions that have been disabled or that have authentication enabled, allowing a remote attacker to acquire information about the local network. (CVE-2006-2223) A route injection flaw was found in the way GNU Zebra interprets RIPv1 RESPONSE packets when RIPv2 authentication is enabled. It is possible for a remote attacker to inject arbitrary route information into the RIPd routing tables. This issue does not affect GNU Zebra configurations where only RIPv2 is specified. (CVE-2006-2224) A denial of service flaw was found in GNU Zebra's telnet interface. If an attacker is able to connect to the GNU Zebra telnet interface, it is possible to cause GNU Zebra to consume vast quantities of CPU resources by issuing a malformed 'sh' command. (CVE-2006-2276) Users of GNU Zebra should upgrade to these updated packages, which contain backported patches that correct these issues.
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:
up2date
This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.
5. Bug IDs fixed (http://bugzilla.redhat.com/):
192757 - CVE-2006-2224 zebra RIPd route injection
192758 - CVE-2006-2276 zebra locks with command sh ip bgp
192759 - CVE-2006-2223 zebra RIPd information disclosure
6. RPMs required:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1:
SRPMS:
b6e01074d122bd8b5c4058fb38b7fec9 zebra-0.91a-11.21AS.src.rpm
i386:
4d2926158a338aa627b941e3e03e9fbc zebra-0.91a-11.21AS.i386.rpm
ia64:
abb964bf1fe301e0faea7e05c4bd048f zebra-0.91a-11.21AS.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
SRPMS:
b6e01074d122bd8b5c4058fb38b7fec9 zebra-0.91a-11.21AS.src.rpm
ia64:
abb964bf1fe301e0faea7e05c4bd048f zebra-0.91a-11.21AS.ia64.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://www.redhat.com/security/team/key/#package
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2223 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2224 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2276 http://www.redhat.com/security/updates/classification/#moderate
Package List
Topic
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Bugs Fixed