RHSA-2002:291 - Security Advisory

Topic

Updated Ethereal packages are available which fix various security issues.

[Updated 06 Feb 2003]
Added fixed packages for Advanced Workstation 2.1

Description

Ethereal is a package designed for monitoring network traffic on your
system. Several security issues have been found in the Ethereal packages
distributed with Red Hat Linux Advanced Server 2.1.

Multiple errors involving signed integers in the BGP dissector in Ethereal
0.9.7 and earlier allow remote attackers to cause a denial of service
(infinite loop) via malformed messages. This problem was discovered by
Silvio Cesare. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2002-1355 to this issue.

Ethereal 0.9.7 and earlier allows remote attackers to cause a denial
of service (crash) and possibly execute arbitrary code via malformed
packets to the LMP, PPP, or TDS dissectors. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2002-1356 to
this issue.

Users of Ethereal should update to the errata packages containing Ethereal
version 0.9.8 which is not vulnerable to these issues.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

Please note that 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.

Affected Products

• Red Hat Enterprise Linux Server 2 ia64
• Red Hat Enterprise Linux Workstation 2 ia64

Fixes

• BZ - 79490 - Ethereal security issues

CVEs

• CVE-2002-1356
• CVE-2002-1355

References

(none)