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AUSCERT External Security Bulletin Redistribution
ESB-2018.3520
SUSE Security Update: Security update for openssh
9 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: openssh
Publisher: SUSE
Operating System: SUSE
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-15919 CVE-2018-15473
Reference: ESB-2018.3326
ESB-2018.3278
ESB-2018.2493
ESB-2018.2473
Original Bulletin:
https://www.suse.com/support/update/announcement/2018/suse-su-20183686-1/
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SUSE Security Update: Security update for openssh
______________________________________________________________________________
Announcement ID: SUSE-SU-2018:3686-1
Rating: moderate
References: #1081947 #1091396 #1105010 #1106163 #964336
Cross-References: CVE-2018-15473 CVE-2018-15919
Affected Products:
SUSE Linux Enterprise Module for Server Applications 15
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
SUSE Linux Enterprise Module for Desktop Applications 15
SUSE Linux Enterprise Module for Basesystem 15
______________________________________________________________________________
An update that solves two vulnerabilities and has three
fixes is now available.
Description:
This update for openssh fixes the following issues:
- CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH
could be used by remote attackers to detect existence of users on a
target system when GSS2 is in use. OpenSSH developers do not want to
treat such a username enumeration (or "oracle") as a vulnerability.
(bsc#1106163)
- CVE-2018-15473: OpenSSH was prone to a user existance oracle
vulnerability due to not delaying bailout for an invalid authenticating
user until after the packet containing the request has been fully
parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
(bsc#1105010)
The following non-security issues were fixed:
- Stop leaking File descriptors (bsc#964336)
- sftp-client.c returns wrong error code upon failure (bsc#1091396)
- added pam_keyinit to pam configuration file (bsc#1081947)
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Module for Server Applications 15:
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2018-2619=1
- SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:
zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2018-2619=1
- SUSE Linux Enterprise Module for Desktop Applications 15:
zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-2018-2619=1
- SUSE Linux Enterprise Module for Basesystem 15:
zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2619=1
Package List:
- SUSE Linux Enterprise Module for Server Applications 15 (aarch64 ppc64le s390x x86_64):
openssh-debuginfo-7.6p1-9.3.1
openssh-debugsource-7.6p1-9.3.1
openssh-fips-7.6p1-9.3.1
- SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 (aarch64 ppc64le s390x x86_64):
openssh-cavs-7.6p1-9.3.1
openssh-cavs-debuginfo-7.6p1-9.3.1
openssh-debuginfo-7.6p1-9.3.1
openssh-debugsource-7.6p1-9.3.1
- SUSE Linux Enterprise Module for Desktop Applications 15 (aarch64 ppc64le s390x x86_64):
openssh-askpass-gnome-7.6p1-9.3.1
openssh-askpass-gnome-debuginfo-7.6p1-9.3.1
- SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x x86_64):
openssh-7.6p1-9.3.1
openssh-debuginfo-7.6p1-9.3.1
openssh-debugsource-7.6p1-9.3.1
openssh-helpers-7.6p1-9.3.1
openssh-helpers-debuginfo-7.6p1-9.3.1
References:
https://www.suse.com/security/cve/CVE-2018-15473.html
https://www.suse.com/security/cve/CVE-2018-15919.html
https://bugzilla.suse.com/1081947
https://bugzilla.suse.com/1091396
https://bugzilla.suse.com/1105010
https://bugzilla.suse.com/1106163
https://bugzilla.suse.com/964336
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