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AUSCERT External Security Bulletin Redistribution
ESB-2019.3015
openssh security, bug fix, and enhancement update
8 August 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: openssh
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-15473
Reference: ESB-2018.3326
ESB-2018.2473
Original Bulletin:
https://access.redhat.com/errata/RHSA-2019:2143
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Red Hat Security Advisory
Synopsis: Low: openssh security, bug fix, and enhancement update
Advisory ID: RHSA-2019:2143-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2143
Issue date: 2019-08-06
CVE Names: CVE-2018-15473
=====================================================================
1. Summary:
An update for openssh is now available for Red Hat Enterprise Linux 7.
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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.7 Release Notes linked from 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/):
1583735 - Permission denied reading authorized_keys when setting AuthorizedKeysCommand
1619063 - CVE-2018-15473 openssh: User enumeration via malformed packets in authentication requests
1712053 - tmux session not attached automatically during manual installation on s390x
1722446 - openssh FIPS cipher list has an extra comma in it
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
openssh-7.4p1-21.el7.src.rpm
x86_64:
openssh-7.4p1-21.el7.x86_64.rpm
openssh-askpass-7.4p1-21.el7.x86_64.rpm
openssh-clients-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-keycat-7.4p1-21.el7.x86_64.rpm
openssh-server-7.4p1-21.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
openssh-cavs-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.i686.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-ldap-7.4p1-21.el7.x86_64.rpm
openssh-server-sysvinit-7.4p1-21.el7.x86_64.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.i686.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
openssh-7.4p1-21.el7.src.rpm
x86_64:
openssh-7.4p1-21.el7.x86_64.rpm
openssh-clients-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-keycat-7.4p1-21.el7.x86_64.rpm
openssh-server-7.4p1-21.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
openssh-askpass-7.4p1-21.el7.x86_64.rpm
openssh-cavs-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.i686.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-ldap-7.4p1-21.el7.x86_64.rpm
openssh-server-sysvinit-7.4p1-21.el7.x86_64.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.i686.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
openssh-7.4p1-21.el7.src.rpm
ppc64:
openssh-7.4p1-21.el7.ppc64.rpm
openssh-askpass-7.4p1-21.el7.ppc64.rpm
openssh-clients-7.4p1-21.el7.ppc64.rpm
openssh-debuginfo-7.4p1-21.el7.ppc64.rpm
openssh-keycat-7.4p1-21.el7.ppc64.rpm
openssh-server-7.4p1-21.el7.ppc64.rpm
ppc64le:
openssh-7.4p1-21.el7.ppc64le.rpm
openssh-askpass-7.4p1-21.el7.ppc64le.rpm
openssh-clients-7.4p1-21.el7.ppc64le.rpm
openssh-debuginfo-7.4p1-21.el7.ppc64le.rpm
openssh-keycat-7.4p1-21.el7.ppc64le.rpm
openssh-server-7.4p1-21.el7.ppc64le.rpm
s390x:
openssh-7.4p1-21.el7.s390x.rpm
openssh-askpass-7.4p1-21.el7.s390x.rpm
openssh-clients-7.4p1-21.el7.s390x.rpm
openssh-debuginfo-7.4p1-21.el7.s390x.rpm
openssh-keycat-7.4p1-21.el7.s390x.rpm
openssh-server-7.4p1-21.el7.s390x.rpm
x86_64:
openssh-7.4p1-21.el7.x86_64.rpm
openssh-askpass-7.4p1-21.el7.x86_64.rpm
openssh-clients-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-keycat-7.4p1-21.el7.x86_64.rpm
openssh-server-7.4p1-21.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
openssh-cavs-7.4p1-21.el7.ppc64.rpm
openssh-debuginfo-7.4p1-21.el7.ppc.rpm
openssh-debuginfo-7.4p1-21.el7.ppc64.rpm
openssh-ldap-7.4p1-21.el7.ppc64.rpm
openssh-server-sysvinit-7.4p1-21.el7.ppc64.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.ppc.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.ppc64.rpm
ppc64le:
openssh-cavs-7.4p1-21.el7.ppc64le.rpm
openssh-debuginfo-7.4p1-21.el7.ppc64le.rpm
openssh-ldap-7.4p1-21.el7.ppc64le.rpm
openssh-server-sysvinit-7.4p1-21.el7.ppc64le.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.ppc64le.rpm
s390x:
openssh-cavs-7.4p1-21.el7.s390x.rpm
openssh-debuginfo-7.4p1-21.el7.s390.rpm
openssh-debuginfo-7.4p1-21.el7.s390x.rpm
openssh-ldap-7.4p1-21.el7.s390x.rpm
openssh-server-sysvinit-7.4p1-21.el7.s390x.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.s390.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.s390x.rpm
x86_64:
openssh-cavs-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.i686.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-ldap-7.4p1-21.el7.x86_64.rpm
openssh-server-sysvinit-7.4p1-21.el7.x86_64.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.i686.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
openssh-7.4p1-21.el7.src.rpm
x86_64:
openssh-7.4p1-21.el7.x86_64.rpm
openssh-askpass-7.4p1-21.el7.x86_64.rpm
openssh-clients-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-keycat-7.4p1-21.el7.x86_64.rpm
openssh-server-7.4p1-21.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
openssh-cavs-7.4p1-21.el7.x86_64.rpm
openssh-debuginfo-7.4p1-21.el7.i686.rpm
openssh-debuginfo-7.4p1-21.el7.x86_64.rpm
openssh-ldap-7.4p1-21.el7.x86_64.rpm
openssh-server-sysvinit-7.4p1-21.el7.x86_64.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.i686.rpm
pam_ssh_agent_auth-0.10.3-2.21.el7.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
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index
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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