ESB-2019.1212 - [RedHat] openssh: Access confidential data - Remote/unauthenticated 2019-04-10

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1212
                       Low: openssh security update
                               10 April 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           openssh
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 6
                   Red Hat Enterprise Linux WS/Desktop 6
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15473  

Reference:         ESB-2018.3663
                   ESB-2018.2536
                   ESB-2018.2493
                   ESB-2018.2473

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2019:0711

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Low: openssh security update
Advisory ID:       RHSA-2019:0711-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:0711
Issue date:        2019-04-09
CVE Names:         CVE-2018-15473 
=====================================================================

1. Summary:

An update for openssh is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) 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 an SSH protocol implementation supported by a number of Linux,
UNIX, and similar operating systems. It includes the core files necessary
for both the OpenSSH client and server.

Security Fix(es):

* openssh: User enumeration via malformed packets in authentication
requests (CVE-2018-15473)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, the OpenSSH server daemon (sshd) will be
restarted automatically.

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

1619063 - CVE-2018-15473 openssh: User enumeration via malformed packets in authentication requests

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
openssh-5.3p1-124.el6_10.src.rpm

i386:
openssh-5.3p1-124.el6_10.i686.rpm
openssh-askpass-5.3p1-124.el6_10.i686.rpm
openssh-clients-5.3p1-124.el6_10.i686.rpm
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-server-5.3p1-124.el6_10.i686.rpm

x86_64:
openssh-5.3p1-124.el6_10.x86_64.rpm
openssh-askpass-5.3p1-124.el6_10.x86_64.rpm
openssh-clients-5.3p1-124.el6_10.x86_64.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-server-5.3p1-124.el6_10.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

i386:
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-ldap-5.3p1-124.el6_10.i686.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.i686.rpm

x86_64:
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-ldap-5.3p1-124.el6_10.x86_64.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.i686.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
openssh-5.3p1-124.el6_10.src.rpm

x86_64:
openssh-5.3p1-124.el6_10.x86_64.rpm
openssh-clients-5.3p1-124.el6_10.x86_64.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-server-5.3p1-124.el6_10.x86_64.rpm

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

x86_64:
openssh-askpass-5.3p1-124.el6_10.x86_64.rpm
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-ldap-5.3p1-124.el6_10.x86_64.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.i686.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
openssh-5.3p1-124.el6_10.src.rpm

i386:
openssh-5.3p1-124.el6_10.i686.rpm
openssh-askpass-5.3p1-124.el6_10.i686.rpm
openssh-clients-5.3p1-124.el6_10.i686.rpm
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-server-5.3p1-124.el6_10.i686.rpm

ppc64:
openssh-5.3p1-124.el6_10.ppc64.rpm
openssh-askpass-5.3p1-124.el6_10.ppc64.rpm
openssh-clients-5.3p1-124.el6_10.ppc64.rpm
openssh-debuginfo-5.3p1-124.el6_10.ppc64.rpm
openssh-server-5.3p1-124.el6_10.ppc64.rpm

s390x:
openssh-5.3p1-124.el6_10.s390x.rpm
openssh-askpass-5.3p1-124.el6_10.s390x.rpm
openssh-clients-5.3p1-124.el6_10.s390x.rpm
openssh-debuginfo-5.3p1-124.el6_10.s390x.rpm
openssh-server-5.3p1-124.el6_10.s390x.rpm

x86_64:
openssh-5.3p1-124.el6_10.x86_64.rpm
openssh-askpass-5.3p1-124.el6_10.x86_64.rpm
openssh-clients-5.3p1-124.el6_10.x86_64.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-server-5.3p1-124.el6_10.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

i386:
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-ldap-5.3p1-124.el6_10.i686.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.i686.rpm

ppc64:
openssh-debuginfo-5.3p1-124.el6_10.ppc.rpm
openssh-debuginfo-5.3p1-124.el6_10.ppc64.rpm
openssh-ldap-5.3p1-124.el6_10.ppc64.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.ppc.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.ppc64.rpm

s390x:
openssh-debuginfo-5.3p1-124.el6_10.s390.rpm
openssh-debuginfo-5.3p1-124.el6_10.s390x.rpm
openssh-ldap-5.3p1-124.el6_10.s390x.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.s390.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.s390x.rpm

x86_64:
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-ldap-5.3p1-124.el6_10.x86_64.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.i686.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
openssh-5.3p1-124.el6_10.src.rpm

i386:
openssh-5.3p1-124.el6_10.i686.rpm
openssh-askpass-5.3p1-124.el6_10.i686.rpm
openssh-clients-5.3p1-124.el6_10.i686.rpm
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-server-5.3p1-124.el6_10.i686.rpm

x86_64:
openssh-5.3p1-124.el6_10.x86_64.rpm
openssh-askpass-5.3p1-124.el6_10.x86_64.rpm
openssh-clients-5.3p1-124.el6_10.x86_64.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-server-5.3p1-124.el6_10.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

i386:
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-ldap-5.3p1-124.el6_10.i686.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.i686.rpm

x86_64:
openssh-debuginfo-5.3p1-124.el6_10.i686.rpm
openssh-debuginfo-5.3p1-124.el6_10.x86_64.rpm
openssh-ldap-5.3p1-124.el6_10.x86_64.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.i686.rpm
pam_ssh_agent_auth-0.9.3-124.el6_10.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/

7. References:

https://access.redhat.com/security/cve/CVE-2018-15473
https://access.redhat.com/security/updates/classification/#low

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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