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Red Hat: RHSA-2014:1671-01 Moderate: Rsyslog Remote Attack Fix

red hat
Calendar Grey October 20, 2014
Dist Redhat Esm H88
A security update for Rsyslog5 and rsyslog is available for Red Hat systems to address a moderate vulnerability, enhancing system integrity and overall security
Updated rsyslog5 and rsyslog packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6 respectively

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/articles/11258

Summary

The rsyslog packages provide an enhanced, multi-threaded syslog daemon that supports writing to relational databases, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control.
A flaw was found in the way rsyslog handled invalid log message priority values. In certain configurations, a local attacker, or a remote attacker able to connect to the rsyslog port, could use this flaw to crash the rsyslog daemon. (CVE-2014-3634)
Red Hat would like to thank Rainer Gerhards of rsyslog upstream for reporting this issue.
All rsyslog5 and rsyslog users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the rsyslog service will be restarted automatically.

Topics%20covered

Topics Covered

security advisory security issue Red Hat remote attack Moderate rsyslog syslog daemon

References

https://access.redhat.com/security/cve/CVE-2014-3634 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: rsyslog5-5.8.12-5.el5_11.src.rpm
i386: rsyslog5-5.8.12-5.el5_11.i386.rpm rsyslog5-debuginfo-5.8.12-5.el5_11.i386.rpm rsyslog5-gnutls-5.8.12-5.el5_11.i386.rpm rsyslog5-gssapi-5.8.12-5.el5_11.i386.rpm rsyslog5-mysql-5.8.12-5.el5_11.i386.rpm rsyslog5-pgsql-5.8.12-5.el5_11.i386.rpm rsyslog5-snmp-5.8.12-5.el5_11.i386.rpm
x86_64: rsyslog5-5.8.12-5.el5_11.x86_64.rpm rsyslog5-debuginfo-5.8.12-5.el5_11.x86_64.rpm rsyslog5-gnutls-5.8.12-5.el5_11.x86_64.rpm rsyslog5-gssapi-5.8.12-5.el5_11.x86_64.rpm rsyslog5-mysql-5.8.12-5.el5_11.x86_64.rpm rsyslog5-pgsql-5.8.12-5.el5_11.x86_64.rpm rsyslog5-snmp-5.8.12-5.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: rsyslog5-5.8.12-5.el5_11.src.rpm
i386: rsyslog5-5.8.12-5.el5_11.i386.rpm rsyslog5-debuginfo-5.8.12-5.el5_11.i386.rpm rsyslog5-gnutls-5.8.12-5.el5_11.i386.rpm rsyslog5-gssapi-5.8.12-5.el5_11.i386.rpm rsyslog5-mysql-5.8.12-5.el5_11.i386.rpm rsyslog5-pgsql-5.8.12-5.el5_11.i386.rpm rsyslog5-snmp-5.8.12-5.el5_11.i386.rpm
ia64: rsyslog5-5.8.12-5.el5_11.ia64.rpm rsyslog5-debuginfo-5.8.12-5.el5_11.ia64.rpm rsyslog5-gnutls-5.8.12-5.el5_11.ia64.rpm rsyslog5-gssapi-5.8.12-5.el5_11.ia64.rpm rsyslog5-mysql-5.8.12-5.el5_11.ia64.rpm rsyslog5-pgsql-5.8.12-5.el5_11.ia64.rpm

Read the Full Advisory


Advisory ID: RHSA-2014:1671-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1671.html
Issue date: 2014-10-20

Topic

Updated rsyslog5 and rsyslog packages that fix one security issue are nowavailable for Red Hat Enterprise Linux 5 and 6 respectively.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat remote attack Moderate rsyslog syslog daemon

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1142373 - CVE-2014-3634 rsyslog: remote syslog PRI vulnerability

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