ESB-2019.1210 - [SUSE] libtcnative-1-0: Unauthorised access - Remote/unauthenticated 2019-04-10

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1210
         SUSE-SU-2019:14014-1 Security update for libtcnative-1-0
                               10 April 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libtcnative-1-0
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-8020 CVE-2018-8019 CVE-2017-15698

Reference:         ESB-2018.0316

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2019/suse-su-201914014-1.html

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SUSE Security Update: Security update for libtcnative-1-0
______________________________________________________________________________

Announcement ID:   SUSE-SU-2019:14014-1
Rating:            important
References:        #1078679 #1103347 #1103348
Cross-References:  CVE-2017-15698 CVE-2018-8019 CVE-2018-8020
Affected Products:
                   SUSE Linux Enterprise Server 11-SP4-LTSS
                   SUSE Linux Enterprise Point of Sale 11-SP3
                   SUSE Linux Enterprise Debuginfo 11-SP4
                   SUSE Linux Enterprise Debuginfo 11-SP3
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for libtcnative-1-0 to version 1.1.34 fixes the following issues:

  o CVE-2017-15698: Fixed an improper handling of fields with more than 127
    bytes which could allow invalid client certificates to be accepted (bsc#
    1078679).
  o CVE-2018-8019: When using an OCSP responder did not correctly handle
    invalid responses. This allowed for revoked client certificates to be
    incorrectly identified. It was therefore possible for users to authenticate
    with revoked certificates when using mutual TLS (bsc#1103348).
  o CVE-2018-8020: Did not properly check OCSP pre-produced responses. Revoked
    client certificates may have not been properly identified, allowing for
    users to authenticate with revoked certificates to connections that require
    mutual TLS (bsc#1103347).


For a complete list of changes please see http://tomcat.apache.org/
native-1.1-doc/miscellaneous/changelog.html

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:

  o SUSE Linux Enterprise Server 11-SP4-LTSS:
    zypper in -t patch slessp4-libtcnative-1-0-14014=1
  o SUSE Linux Enterprise Point of Sale 11-SP3:
    zypper in -t patch sleposp3-libtcnative-1-0-14014=1
  o SUSE Linux Enterprise Debuginfo 11-SP4:
    zypper in -t patch dbgsp4-libtcnative-1-0-14014=1
  o SUSE Linux Enterprise Debuginfo 11-SP3:
    zypper in -t patch dbgsp3-libtcnative-1-0-14014=1

Package List:

  o SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):
       libtcnative-1-0-1.3.4-12.5.5.2
  o SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
       libtcnative-1-0-1.3.4-12.5.5.2
  o SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):
       libtcnative-1-0-debuginfo-1.3.4-12.5.5.2
       libtcnative-1-0-debugsource-1.3.4-12.5.5.2
  o SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):
       libtcnative-1-0-debuginfo-1.3.4-12.5.5.2
       libtcnative-1-0-debugsource-1.3.4-12.5.5.2


References:

  o https://www.suse.com/security/cve/CVE-2017-15698.html
  o https://www.suse.com/security/cve/CVE-2018-8019.html
  o https://www.suse.com/security/cve/CVE-2018-8020.html
  o https://bugzilla.suse.com/1078679
  o https://bugzilla.suse.com/1103347
  o https://bugzilla.suse.com/1103348

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