Security update for ntp

SUSE Security Update: Security update for ntp
Announcement ID: SUSE-SU-2015:2058-1
Rating: moderate
References: #905885 #910063 #936327 #942441 #942587 #944300 #951608
Affected Products:
  • SUSE Linux Enterprise Server 11-SP4
  • SUSE Linux Enterprise Desktop 11-SP4
  • SUSE Linux Enterprise Debuginfo 11-SP4

  • An update that fixes 16 vulnerabilities is now available.


    This ntp update provides the following security and non security fixes:

    - Update to 4.2.8p4 to fix several security issues (bsc#951608):
    * CVE-2015-7871: NAK to the Future: Symmetric association authentication
    bypass via crypto-NAK
    * CVE-2015-7855: decodenetnum() will ASSERT botch instead of returning
    FAIL on some bogus values
    * CVE-2015-7854: Password Length Memory Corruption Vulnerability
    * CVE-2015-7853: Invalid length data provided by a custom refclock
    driver could cause a buffer overflow
    * CVE-2015-7852 ntpq atoascii() Memory Corruption Vulnerability
    * CVE-2015-7851 saveconfig Directory Traversal Vulnerability
    * CVE-2015-7850 remote config logfile-keyfile
    * CVE-2015-7849 trusted key use-after-free
    * CVE-2015-7848 mode 7 loop counter underrun
    * CVE-2015-7701 Slow memory leak in CRYPTO_ASSOC
    * CVE-2015-7703 configuration directives "pidfile" and "driftfile"
    should only be allowed locally
    * CVE-2015-7704, CVE-2015-7705 Clients that receive a KoD should
    validate the origin timestamp field
    * CVE-2015-7691, CVE-2015-7692, CVE-2015-7702 Incomplete autokey data
    packet length checks
    - Use ntpq instead of deprecated ntpdc in start-ntpd (bnc#936327).
    - Add a controlkey to ntp.conf to make the above work.
    - Improve runtime configuration:
    * Read keytype from ntp.conf
    * Don't write ntp keys to syslog.
    - Don't let "keysdir" lines in ntp.conf trigger the "keys" parser.
    - Fix the comment regarding addserver in ntp.conf (bnc#910063).
    - Remove ntp.1.gz, it wasn't installed anymore.
    - Remove ntp-4.2.7-rh-manpages.tar.gz and only keep ntptime.8.gz. The rest
    is partially irrelevant, partially redundant and potentially outdated
    - Remove "kod" from the restrict line in ntp.conf (bsc#944300).
    - Use SHA1 instead of MD5 for symmetric keys (bsc#905885).
    - Require perl-Socket6 (bsc#942441).
    - Fix incomplete backporting of "rcntp ntptimemset".

    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 11-SP4:
      zypper in -t patch slessp4-ntp-12218=1
    • SUSE Linux Enterprise Desktop 11-SP4:
      zypper in -t patch sledsp4-ntp-12218=1
    • SUSE Linux Enterprise Debuginfo 11-SP4:
      zypper in -t patch dbgsp4-ntp-12218=1

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

    Package List:

    • SUSE Linux Enterprise Server 11-SP4 (i586 ia64 ppc64 s390x x86_64):
      • ntp-4.2.8p4-5.1
      • ntp-doc-4.2.8p4-5.1
    • SUSE Linux Enterprise Desktop 11-SP4 (i586 x86_64):
      • ntp-4.2.8p4-5.1
      • ntp-doc-4.2.8p4-5.1
    • SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 ppc64 s390x x86_64):
      • ntp-debuginfo-4.2.8p4-5.1
      • ntp-debugsource-4.2.8p4-5.1