SUSE-SU-2018:1425-1: moderate: Security update for krb5

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

   SUSE Security Update: Security update for krb5
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:1425-1
Rating:             moderate
References:         #1054028 #1055851 #1081725 
Cross-References:   CVE-2017-7562
Affected Products:
                    SUSE Linux Enterprise Server for SAP 12-SP1
                    SUSE Linux Enterprise Server 12-SP1-LTSS
                    SUSE Linux Enterprise Server 12-LTSS
______________________________________________________________________________

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

Description:

   This update for krb5 provides the following fixes:

   Security issues fixed:

   - CVE-2017-7562: Improper validation of certificate EKU and SAN could lead
     to authentication bypass. (bsc#1055851)

   Non-security issues fixed:

   - Set "rdns" and "dns_canonicalize_hostname" to false in krb5.conf in
     order to improve client security in handling service principle names.
     (bsc#1054028)
   - Fix a GSS failure in legacy applications by not indicating deprecated
     GSS mechanisms in gss_indicate_mech() list. (bsc#1081725)


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 for SAP 12-SP1:

      zypper in -t patch SUSE-SLE-SAP-12-SP1-2018-983=1

   - SUSE Linux Enterprise Server 12-SP1-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2018-983=1

   - SUSE Linux Enterprise Server 12-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-2018-983=1



Package List:

   - SUSE Linux Enterprise Server for SAP 12-SP1 (ppc64le x86_64):

      krb5-1.12.1-38.5.3
      krb5-client-1.12.1-38.5.3
      krb5-client-debuginfo-1.12.1-38.5.3
      krb5-debuginfo-1.12.1-38.5.3
      krb5-debugsource-1.12.1-38.5.3
      krb5-doc-1.12.1-38.5.3
      krb5-plugin-kdb-ldap-1.12.1-38.5.3
      krb5-plugin-kdb-ldap-debuginfo-1.12.1-38.5.3
      krb5-plugin-preauth-otp-1.12.1-38.5.3
      krb5-plugin-preauth-otp-debuginfo-1.12.1-38.5.3
      krb5-plugin-preauth-pkinit-1.12.1-38.5.3
      krb5-plugin-preauth-pkinit-debuginfo-1.12.1-38.5.3
      krb5-server-1.12.1-38.5.3
      krb5-server-debuginfo-1.12.1-38.5.3

   - SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

      krb5-32bit-1.12.1-38.5.3
      krb5-debuginfo-32bit-1.12.1-38.5.3

   - SUSE Linux Enterprise Server 12-SP1-LTSS (ppc64le s390x x86_64):

      krb5-1.12.1-38.5.3
      krb5-client-1.12.1-38.5.3
      krb5-client-debuginfo-1.12.1-38.5.3
      krb5-debuginfo-1.12.1-38.5.3
      krb5-debugsource-1.12.1-38.5.3
      krb5-doc-1.12.1-38.5.3
      krb5-plugin-kdb-ldap-1.12.1-38.5.3
      krb5-plugin-kdb-ldap-debuginfo-1.12.1-38.5.3
      krb5-plugin-preauth-otp-1.12.1-38.5.3
      krb5-plugin-preauth-otp-debuginfo-1.12.1-38.5.3
      krb5-plugin-preauth-pkinit-1.12.1-38.5.3
      krb5-plugin-preauth-pkinit-debuginfo-1.12.1-38.5.3
      krb5-server-1.12.1-38.5.3
      krb5-server-debuginfo-1.12.1-38.5.3

   - SUSE Linux Enterprise Server 12-SP1-LTSS (s390x x86_64):

      krb5-32bit-1.12.1-38.5.3
      krb5-debuginfo-32bit-1.12.1-38.5.3

   - SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):

      krb5-1.12.1-38.5.3
      krb5-client-1.12.1-38.5.3
      krb5-client-debuginfo-1.12.1-38.5.3
      krb5-debuginfo-1.12.1-38.5.3
      krb5-debugsource-1.12.1-38.5.3
      krb5-doc-1.12.1-38.5.3
      krb5-plugin-kdb-ldap-1.12.1-38.5.3
      krb5-plugin-kdb-ldap-debuginfo-1.12.1-38.5.3
      krb5-plugin-preauth-otp-1.12.1-38.5.3
      krb5-plugin-preauth-otp-debuginfo-1.12.1-38.5.3
      krb5-plugin-preauth-pkinit-1.12.1-38.5.3
      krb5-plugin-preauth-pkinit-debuginfo-1.12.1-38.5.3
      krb5-server-1.12.1-38.5.3
      krb5-server-debuginfo-1.12.1-38.5.3

   - SUSE Linux Enterprise Server 12-LTSS (s390x x86_64):

      krb5-32bit-1.12.1-38.5.3
      krb5-debuginfo-32bit-1.12.1-38.5.3


References:

   https://www.suse.com/security/cve/CVE-2017-7562.html
   https://bugzilla.suse.com/1054028
   https://bugzilla.suse.com/1055851
   https://bugzilla.suse.com/1081725