Red Hat Security Advisory
Synopsis: Important: logwatch security update
Advisory ID: RHSA-2011:0324-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0324.html
Issue date: 2011-03-07
CVE Names: CVE-2011-1018
An updated logwatch package that fixes one security issue is now available
for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux (v. 5 server) - noarch
Red Hat Enterprise Linux Desktop (v. 5 client) - noarch
Red Hat Enterprise Linux Desktop (v. 6) - noarch
Red Hat Enterprise Linux HPC Node (v. 6) - noarch
Red Hat Enterprise Linux Server (v. 6) - noarch
Red Hat Enterprise Linux Workstation (v. 6) - noarch
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 flaw was found in the way Logwatch processed log files. If an attacker
were able to create a log file with a malicious file name, it could result
in arbitrary code execution with the privileges of the root user when that
log file is analyzed by Logwatch. (CVE-2011-1018)
Users of logwatch should upgrade to this updated package, which contains a
backported patch to resolve this issue.
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
5. Bugs fixed (http://bugzilla.redhat.com/):
680237 - CVE-2011-1018 logwatch: Privilege escalation due improper sanitization of special characters in log file names