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Red Hat: RHSA-2014:1654-01 Important: Rsyslog7 Remote Code Execution

red hat
Calendar Grey October 16, 2014
Scroller Redhat Esm H88
Urgent rsyslog7 security notice for Red Hat Enterprise Linux, patch provided for local and remote exploit vulnerabilities.
Updated rsyslog7 packages that fix one security issue are now available for Red Hat Enterprise Linux 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/articles/11258

Summary

The rsyslog7 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 or, potentially, execute arbitrary code as the user running the rsyslog daemon. (CVE-2014-3634)
Red Hat would like to thank Rainer Gerhards of rsyslog upstream for reporting this issue.
All rsyslog7 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 code execution important update rsyslog7

References

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

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: rsyslog7-7.4.10-3.el6_6.src.rpm
i386: rsyslog7-7.4.10-3.el6_6.i686.rpm rsyslog7-debuginfo-7.4.10-3.el6_6.i686.rpm rsyslog7-gnutls-7.4.10-3.el6_6.i686.rpm rsyslog7-gssapi-7.4.10-3.el6_6.i686.rpm rsyslog7-relp-7.4.10-3.el6_6.i686.rpm
x86_64: rsyslog7-7.4.10-3.el6_6.x86_64.rpm rsyslog7-debuginfo-7.4.10-3.el6_6.x86_64.rpm rsyslog7-gnutls-7.4.10-3.el6_6.x86_64.rpm rsyslog7-gssapi-7.4.10-3.el6_6.x86_64.rpm rsyslog7-relp-7.4.10-3.el6_6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: rsyslog7-debuginfo-7.4.10-3.el6_6.i686.rpm rsyslog7-elasticsearch-7.4.10-3.el6_6.i686.rpm rsyslog7-mysql-7.4.10-3.el6_6.i686.rpm rsyslog7-pgsql-7.4.10-3.el6_6.i686.rpm rsyslog7-snmp-7.4.10-3.el6_6.i686.rpm
x86_64: rsyslog7-debuginfo-7.4.10-3.el6_6.x86_64.rpm rsyslog7-elasticsearch-7.4.10-3.el6_6.x86_64.rpm rsyslog7-mysql-7.4.10-3.el6_6.x86_64.rpm rsyslog7-pgsql-7.4.10-3.el6_6.x86_64.rpm rsyslog7-snmp-7.4.10-3.el6_6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: rsyslog7-7.4.10-3.el6_6.src.rpm
x86_64: rsyslog7-7.4.10-3.el6_6.x86_64.rpm rsyslog7-debuginfo-7.4.10-3.el6_6.x86_64.rpm rsyslog7-gnutls-7.4.10-3.el6_6.x86_64.rpm rsyslog7-gssapi-7.4.10-3.el6_6.x86_64.rpm rsyslog7-relp-7.4.10-3.el6_6.x86_64.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:1654-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1654.html
Issue date: 2014-10-16

Topic

Updated rsyslog7 packages that fix one security issue are now available forRed Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having Important 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 code execution important update rsyslog7

Relevant Releases Architectures

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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