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    SUSE: 2020:1823-1 moderate: ntp

    Date
    192
    Posted By
    An update that solves four vulnerabilities and has two fixes is now available.
    
       SUSE Security Update: Security update for ntp
    ______________________________________________________________________________
    
    Announcement ID:    SUSE-SU-2020:1823-1
    Rating:             moderate
    References:         #1125401 #1169740 #1171355 #1172651 #1173334 
                        #992038 
    Cross-References:   CVE-2018-8956 CVE-2020-11868 CVE-2020-13817
                        CVE-2020-15025
    Affected Products:
                        SUSE Linux Enterprise Server for SAP 15
                        SUSE Linux Enterprise Server 15-LTSS
                        SUSE Linux Enterprise Module for Legacy Software 15-SP2
                        SUSE Linux Enterprise Module for Legacy Software 15-SP1
    ______________________________________________________________________________
    
       An update that solves four vulnerabilities and has two
       fixes is now available.
    
    Description:
    
       This update for ntp fixes the following issues:
    
       ntp was updated to 4.2.8p15
    
       - CVE-2020-11868: Fixed an issue which a server mode packet with spoofed
         source address frequently send to the client ntpd could have caused
         denial of service (bsc#1169740).
       - CVE-2018-8956: Fixed an issue which could have allowed remote attackers
         to prevent a broadcast client from synchronizing its clock with a
         broadcast NTP server via spoofed mode 3 and mode 5 packets (bsc#1171355).
       - CVE-2020-13817: Fixed an issue which an off-path attacker with the
         ability to query time from victim's ntpd instance could have modified
         the victim's clock by a limited amount (bsc#1172651).
       - CVE-2020-15025: Fixed an issue which remote attacker could have caused
         denial of service by consuming the memory when a CMAC key was used
         andassociated with a CMAC algorithm in the ntp.keys (bsc#1173334).
       - Removed an OpenSSL version warning (bsc#992038 and bsc#1125401).
    
    
    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 15:
    
          zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2020-1823=1
    
       - SUSE Linux Enterprise Server 15-LTSS:
    
          zypper in -t patch SUSE-SLE-Product-SLES-15-2020-1823=1
    
       - SUSE Linux Enterprise Module for Legacy Software 15-SP2:
    
          zypper in -t patch SUSE-SLE-Module-Legacy-15-SP2-2020-1823=1
    
       - SUSE Linux Enterprise Module for Legacy Software 15-SP1:
    
          zypper in -t patch SUSE-SLE-Module-Legacy-15-SP1-2020-1823=1
    
    
    
    Package List:
    
       - SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64):
    
          ntp-4.2.8p15-4.10.1
          ntp-debuginfo-4.2.8p15-4.10.1
          ntp-debugsource-4.2.8p15-4.10.1
    
       - SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x):
    
          ntp-4.2.8p15-4.10.1
          ntp-debuginfo-4.2.8p15-4.10.1
          ntp-debugsource-4.2.8p15-4.10.1
    
       - SUSE Linux Enterprise Module for Legacy Software 15-SP2 (aarch64 ppc64le s390x x86_64):
    
          ntp-4.2.8p15-4.10.1
          ntp-debuginfo-4.2.8p15-4.10.1
          ntp-debugsource-4.2.8p15-4.10.1
    
       - SUSE Linux Enterprise Module for Legacy Software 15-SP1 (aarch64 ppc64le s390x x86_64):
    
          ntp-4.2.8p15-4.10.1
          ntp-debuginfo-4.2.8p15-4.10.1
          ntp-debugsource-4.2.8p15-4.10.1
    
    
    References:
    
       https://www.suse.com/security/cve/CVE-2018-8956.html
       https://www.suse.com/security/cve/CVE-2020-11868.html
       https://www.suse.com/security/cve/CVE-2020-13817.html
       https://www.suse.com/security/cve/CVE-2020-15025.html
       https://bugzilla.suse.com/1125401
       https://bugzilla.suse.com/1169740
       https://bugzilla.suse.com/1171355
       https://bugzilla.suse.com/1172651
       https://bugzilla.suse.com/1173334
       https://bugzilla.suse.com/992038
    
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