SUSE-SU-2018:3768-1: moderate: Security update for openssh-openssl1

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for openssh-openssl1
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:3768-1
Rating:             moderate
References:         #1091396 #1105010 #1106163 #964336 
Cross-References:   CVE-2018-15473 CVE-2018-15919
Affected Products:
                    SUSE Linux Enterprise Server 11-SECURITY
______________________________________________________________________________

   An update that solves two vulnerabilities and has two fixes
   is now available.

Description:

   This update for openssh-openssl1 fixes the following issues:

   Security issues fixed:

   - 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)

   Following non-security issues were fixed:

   - Fix for sftp client because it returns wrong error code upon failure
     (bsc#1091396)
   - Stop leaking File descriptors (bsc#964336)


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 Server 11-SECURITY:

      zypper in -t patch secsp3-openssh-openssl1-13865=1



Package List:

   - SUSE Linux Enterprise Server 11-SECURITY (i586 ia64 ppc64 s390x x86_64):

      openssh-openssl1-6.6p1-19.6.1
      openssh-openssl1-helpers-6.6p1-19.6.1


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/1091396
   https://bugzilla.suse.com/1105010
   https://bugzilla.suse.com/1106163
   https://bugzilla.suse.com/964336