[RHSA-2013:1591-02] Low: openssh security, bug fix, and enhancement update

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Red Hat Security Advisory

 

Synopsis: Low: openssh security, bug fix, and enhancement update

Advisory ID: RHSA-2013:1591-02

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-1591.html

Issue date: 2013-11-21

CVE Names: CVE-2010-5107

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1. Summary:

 

Updated openssh packages that fix one security issue, several bugs, and add

various enhancements are now available for Red Hat Enterprise Linux 6.

 

The Red Hat Security Response Team has rated this update as having low

security impact. A Common Vulnerability Scoring System (CVSS) base score,

which gives a detailed severity rating, is available from the CVE link in

the References section.

 

2. 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

 

3. Description:

 

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.

 

4. 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

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

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

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

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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

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 Server (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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

 

ppc64:

openssh-5.3p1-94.el6.ppc64.rpm

openssh-askpass-5.3p1-94.el6.ppc64.rpm

openssh-clients-5.3p1-94.el6.ppc64.rpm

openssh-debuginfo-5.3p1-94.el6.ppc64.rpm

openssh-server-5.3p1-94.el6.ppc64.rpm

 

s390x:

openssh-5.3p1-94.el6.s390x.rpm

openssh-askpass-5.3p1-94.el6.s390x.rpm

openssh-clients-5.3p1-94.el6.s390x.rpm

openssh-debuginfo-5.3p1-94.el6.s390x.rpm

openssh-server-5.3p1-94.el6.s390x.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 Server Optional (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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

 

ppc64:

openssh-debuginfo-5.3p1-94.el6.ppc.rpm

openssh-debuginfo-5.3p1-94.el6.ppc64.rpm

openssh-ldap-5.3p1-94.el6.ppc64.rpm

pam_ssh_agent_auth-0.9.3-94.el6.ppc.rpm

pam_ssh_agent_auth-0.9.3-94.el6.ppc64.rpm

 

s390x:

openssh-debuginfo-5.3p1-94.el6.s390.rpm

openssh-debuginfo-5.3p1-94.el6.s390x.rpm

openssh-ldap-5.3p1-94.el6.s390x.rpm

pam_ssh_agent_auth-0.9.3-94.el6.s390.rpm

pam_ssh_agent_auth-0.9.3-94.el6.s390x.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 Workstation (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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 Workstation Optional (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openssh-5.3p1-94.el6.src.rpm

 

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

 

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

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2010-5107.html

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

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2013 Red Hat, Inc.

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