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Red Hat Enterprise Linux 5 & 6: RHSA-2011:0324-01 Important Logwatch Update

red hat
Calendar Grey March 7, 2011
Dist Redhat Esm H88
Red Hat has issued an advisory about a critical security flaw in Logwatch affecting RHEL versions 5 and 6, advising users to apply a patch swiftly to maintain system security.
An updated logwatch package that fixes one security issue is now available for Red Hat Enterprise Linux 5 and 6

Solution

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 https://access.redhat.com/kb/docs/DOC-11259

Summary

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.

Topics%20covered

Topics Covered

security advisory Red Hat code execution log analysis important security update

References

https://access.redhat.com/security/cve/CVE-2011-1018 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
noarch: logwatch-7.3-9.el5_6.noarch.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
noarch: logwatch-7.3-9.el5_6.noarch.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source:
noarch: logwatch-7.3.6-49.el6.noarch.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
noarch: logwatch-7.3.6-49.el6.noarch.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
noarch: logwatch-7.3.6-49.el6.noarch.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
noarch: logwatch-7.3.6-49.el6.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:0324-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0324.html
Issue date: 2011-03-07

Topic

An updated logwatch package that fixes one security issue is now availablefor Red Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat code execution log analysis important security update

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

Bugs Fixed

680237 - CVE-2011-1018 logwatch: Privilege escalation due improper sanitization of special characters in log file names

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