SUSE-SU-2016:1291-1: important: Security update for ntp

sle-security-updates at sle-security-updates at
Thu May 12 12:09:15 MDT 2016

   SUSE Security Update: Security update for ntp

Announcement ID:    SUSE-SU-2016:1291-1
Rating:             important
References:         #957226 #977446 #977450 #977451 #977452 #977455 
                    #977457 #977458 #977459 #977461 #977464 
Cross-References:   CVE-2015-7704 CVE-2015-7705 CVE-2015-7974
                    CVE-2016-1547 CVE-2016-1548 CVE-2016-1549
                    CVE-2016-1550 CVE-2016-1551 CVE-2016-2516
                    CVE-2016-2517 CVE-2016-2518 CVE-2016-2519
Affected Products:
                    SUSE Linux Enterprise Server 12-SP1
                    SUSE Linux Enterprise Desktop 12-SP1

   An update that fixes 12 vulnerabilities is now available.


   This update for ntp to 4.2.8p7 fixes the following issues:

   * CVE-2016-1547, bsc#977459: Validate crypto-NAKs, AKA: CRYPTO-NAK DoS.
   * CVE-2016-1548, bsc#977461: Interleave-pivot
   * CVE-2016-1549, bsc#977451: Sybil vulnerability: ephemeral association
   * CVE-2016-1550, bsc#977464: Improve NTP security against buffer
     comparison timing attacks.
   * CVE-2016-1551, bsc#977450: Refclock impersonation vulnerability
   * CVE-2016-2516, bsc#977452: Duplicate IPs on unconfig directives will
     cause an assertion botch in ntpd.
   * CVE-2016-2517, bsc#977455: remote configuration trustedkey/
     requestkey/controlkey values are not properly validated.
   * CVE-2016-2518, bsc#977457: Crafted addpeer with hmode > 7 causes array
     wraparound with MATCH_ASSOC.
   * CVE-2016-2519, bsc#977458: ctl_getitem() return value not always checked.
   * This update also improves the fixes for: CVE-2015-7704, CVE-2015-7705,

   Bugs fixed:
   - Restrict the parser in the startup script to the first
     occurrance of "keys" and "controlkey" in ntp.conf (bsc#957226).

Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 12-SP1:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-764=1

   - SUSE Linux Enterprise Desktop 12-SP1:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-764=1

   To bring your system up-to-date, use "zypper patch".

Package List:

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


   - SUSE Linux Enterprise Desktop 12-SP1 (x86_64):



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