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RHEL 2.1 : zebra (RHSA-2003:305)

medium Nessus Plugin ID 12427

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 available.

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 issue.

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.

Solution

Update the affected zebra package.

See Also

https://access.redhat.com/security/cve/cve-2003-0795

https://access.redhat.com/security/cve/cve-2003-0858

https://access.redhat.com/errata/RHSA-2003:305

Plugin Details

Severity: Medium

ID: 12427

File Name: redhat-RHSA-2003-305.nasl

Version: 1.25

Type: local

Agent: unix

Published: 7/6/2004

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:zebra, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 11/12/2003

Vulnerability Publication Date: 12/15/2003

Reference Information

CVE: CVE-2003-0795, CVE-2003-0858

RHSA: 2003:305