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Ubuntu 11.04 USN-1338-1: Rsyslog Denial Of Service Risk

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Calendar Grey January 23, 2012
Scroller Ubuntu
Keep updated regarding the rsyslog security vulnerability in Ubuntu 11.04 that could cause denial of service issues, as well as the steps to perform necessary updates.
Rsyslog could be made to crash if it processed a specially crafted log message.

Summary

Rsyslog could be made to crash if it processed a specially crafted log

message.

Software Description:

- rsyslog: Enhanced syslogd

Details:

Peter Eisentraut discovered that Rsyslog would not properly perform input

validation when configured to use imfile. If an attacker were able to

craft messages in a file that Rsyslog monitored, an attacker could cause a

denial of service. The imfile module is disabled by default in Ubuntu.

Topics%20covered

Topics Covered

security advisory denial of service software update ubuntu rsyslog

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
  rsyslog                         4.6.4-2ubuntu4.2

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-1338-1

CVE-2011-4623

Severity
critical
Lowest
Low
Medium
High
Critical

January 23, 2012

Topics%20covered

Topics Covered

security advisory denial of service software update ubuntu rsyslog

Package Information

https://launchpad.net/ubuntu/+source/rsyslog/4.6.4-2ubuntu4.2

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