openSUSE Security Update: Security update for openssh
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Announcement ID: openSUSE-SU-2018:3801-1
Rating: moderate
References: #1081947 #1091396 #1105010 #1106163 #964336

Cross-References: CVE-2018-15473 CVE-2018-15919
Affected Products:
openSUSE Leap 15.0
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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)

This update was imported from the SUSE:SLE-15:Update update project.

Patch Instructions:

To install this openSUSE 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:

– openSUSE Leap 15.0:

zypper in -t patch openSUSE-2018-1419=1

Package List:

– openSUSE Leap 15.0 (i586 x86_64):

openssh-7.6p1-lp150.8.3.1
openssh-cavs-7.6p1-lp150.8.3.1
openssh-cavs-debuginfo-7.6p1-lp150.8.3.1
openssh-debuginfo-7.6p1-lp150.8.3.1
openssh-debugsource-7.6p1-lp150.8.3.1
openssh-fips-7.6p1-lp150.8.3.1
openssh-helpers-7.6p1-lp150.8.3.1
openssh-helpers-debuginfo-7.6p1-lp150.8.3.1

– openSUSE Leap 15.0 (x86_64):

openssh-askpass-gnome-7.6p1-lp150.8.3.1
openssh-askpass-gnome-debuginfo-7.6p1-lp150.8.3.1

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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