RHSA-2005:364 - Security Advisory

Topic

An updated logwatch package that fixes a denial of service issue is now
available.

This update has been rated as having moderate security impact by the
Red Hat Security Response Team.

Description

LogWatch is a customizable log analysis system. LogWatch parses
through your system's logs for a given period of time and creates a
report analyzing areas that you specify, in as much detail as you
require.

A bug was found in the logwatch secure script. If an attacker is able to
inject an arbitrary string into the /var/log/secure file, it is possible to
prevent logwatch from detecting malicious activity. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2005-1061 to this issue.

All users of logwatch are advised to upgrade to this updated
package, which contain backported fixes for this issue.

Solution

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

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains
the
desired RPMs.

Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. 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 Server 2 i386
• Red Hat Enterprise Linux Workstation 2 ia64
• Red Hat Enterprise Linux Workstation 2 i386

Fixes

• BZ - 137502 - CAN-2005-1061 logwatch log processing regular expression DoS

CVEs

• CVE-2005-1061

References

(none)