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

sle-security-updates at sle-security-updates at
Wed Nov 14 10:10:43 MST 2018

   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.


   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.
   - 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.

   Following non-security issues were fixed:

   - Fix for sftp client because it returns wrong error code upon failure
   - 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):



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