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Red Hat 6 RHSA-2013:1591-03 Moderate: OpenSSL Vulnerability Patched

red hat
Calendar Grey November 20, 2013
Dist Redhat Esm H88
Newly released OpenSSH updates bring improvements and adjustments to Red Hat Enterprise Linux 6, featuring minor security enhancements and various bug resolutions.
Updated openssh packages that fix one security issue, several bugs, and add various enhancements 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/site/articles/11258

Summary

OpenSSH is OpenBSD's Secure Shell (SSH) protocol implementation. These packages include the core files necessary for the OpenSSH client and server.
The default OpenSSH configuration made it easy for remote attackers to exhaust unauthorized connection slots and prevent other users from being able to log in to a system. This flaw has been addressed by enabling random early connection drops by setting MaxStartups to 10:30:100 by default. For more information, refer to the sshd_config(5) man page. (CVE-2010-5107)
These updated openssh packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.5 Technical Notes, linked to in the References, for information on the most significant of these changes.
All openssh users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements.

Topics%20covered

Topics Covered

security advisory Red Hat software update low severity OpenSSH remote access issue

References

https://access.redhat.com/security/cve/CVE-2010-5107 https://access.redhat.com/security/updates/classification/#low https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.5_Technical_Notes/openssh.html#RHSA-2013-1591

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: openssh-5.3p1-94.el6.i686.rpm openssh-askpass-5.3p1-94.el6.i686.rpm openssh-clients-5.3p1-94.el6.i686.rpm openssh-debuginfo-5.3p1-94.el6.i686.rpm openssh-server-5.3p1-94.el6.i686.rpm
x86_64: openssh-5.3p1-94.el6.x86_64.rpm openssh-askpass-5.3p1-94.el6.x86_64.rpm openssh-clients-5.3p1-94.el6.x86_64.rpm openssh-debuginfo-5.3p1-94.el6.x86_64.rpm openssh-server-5.3p1-94.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: openssh-debuginfo-5.3p1-94.el6.i686.rpm openssh-ldap-5.3p1-94.el6.i686.rpm pam_ssh_agent_auth-0.9.3-94.el6.i686.rpm
x86_64: openssh-debuginfo-5.3p1-94.el6.i686.rpm openssh-debuginfo-5.3p1-94.el6.x86_64.rpm openssh-ldap-5.3p1-94.el6.x86_64.rpm pam_ssh_agent_auth-0.9.3-94.el6.i686.rpm pam_ssh_agent_auth-0.9.3-94.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: openssh-5.3p1-94.el6.x86_64.rpm openssh-clients-5.3p1-94.el6.x86_64.rpm openssh-debuginfo-5.3p1-94.el6.x86_64.rpm openssh-server-5.3p1-94.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: openssh-askpass-5.3p1-94.el6.x86_64.rpm openssh-debuginfo-5.3p1-94.el6.i686.rpm openssh-debuginfo-5.3p1-94.el6.x86_64.rpm openssh-ldap-5.3p1-94.el6.x86_64.rpm

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:1591-02
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:1591.html
Issue date: 2013-11-21

Topic

Updated openssh packages that fix one security issue, several bugs, and addvarious enhancements are now available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having lowsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory Red Hat software update low severity OpenSSH remote access issue

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

908707 - CVE-2010-5107 openssh: Prevent connection slot exhaustion attacks

974096 - Kerberos ticket forwarding does not work if /tmp is polyinstantiated

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