RHEL 2.1 : zebra (RHSA-2003:305)

This script is Copyright (C) 2004-2014 Tenable Network Security, Inc.

Synopsis :

The remote Red Hat host is missing a security update.

Description :

Updated zebra packages that close a locally-exploitable and a
remotely-exploitable denial of service vulnerability are now

Zebra an open source implementation of TCP/IP routing software.

Jonny Robertson reported that Zebra can be remotely crashed if a Zebra
password has been enabled and a remote attacker can connect to the
Zebra telnet management port. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CVE-2003-0795 to this

Herbert Xu reported that Zebra can accept spoofed messages sent on the
kernel netlink interface by other users on the local machine. This
could lead to a local denial of service attack. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2003-0858 to this issue.

Users of Zebra should upgrade to these erratum packages, which contain
a patch preventing Zebra from crashing when it receives a telnet
option delimiter without any option data, and a patch that checks that
netlink messages actually came from the kernel.

See also :


Solution :

Update the affected zebra package.

Risk factor :

Medium / CVSS Base Score : 5.0

Family: Red Hat Local Security Checks

Nessus Plugin ID: 12427 ()

Bugtraq ID:

CVE ID: CVE-2003-0795