[security-announce] SUSE-SU-2016:1247-1: important: Security update for ntp

Fabricante: SuSe
Fecha: 06/05/2016
Identificador: SUSE-SU-2016:1247-1
[security-announce] SUSE-SU-2016:1247-1: important: Security update for ntp
SUSE Security Update: Security update for ntp ______________________________________________________________________________ Announcement ID: SUSE-SU-2016:1247-1 Rating: important References: #782060 #905885 #910063 #916617 #920238 #926510 #936327 #937837 #942587 #944300 #946386 #951559 #951608 #951629 #954982 #956773 #962318 #962784 #962802 #962960 #962966 #962970 #962988 #962994 #962995 #962997 #963000 #963002 #975496 #975981 Cross-References: CVE-2015-5300 CVE-2015-7691 CVE-2015-7692 CVE-2015-7701 CVE-2015-7702 CVE-2015-7703 CVE-2015-7704 CVE-2015-7705 CVE-2015-7848 CVE-2015-7849 CVE-2015-7850 CVE-2015-7851 CVE-2015-7852 CVE-2015-7853 CVE-2015-7854 CVE-2015-7855 CVE-2015-7871 CVE-2015-7973 CVE-2015-7974 CVE-2015-7975 CVE-2015-7976 CVE-2015-7977 CVE-2015-7978 CVE-2015-7979 CVE-2015-8138 CVE-2015-8139 CVE-2015-8140 CVE-2015-8158 Affected Products: SUSE Linux Enterprise Software Development Kit 12 SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Desktop 12 ______________________________________________________________________________ An update that solves 28 vulnerabilities and has two fixes is now available. Description: ntp was updated to version 4.2.8p6 to fix 28 security issues. Major functional changes: - The "sntp" commandline tool changed its option handling in a major way, some options have been renamed or dropped. - "controlkey 1" is added during update to ntp.conf to allow sntp to work. - The local clock is being disabled during update. - ntpd is no longer running chrooted. Other functional changes: - ntp-signd is installed. - "enable mode7" can be added to the configuration to allow ntdpc to work as compatibility mode option. - "kod" was removed from the default restrictions. - SHA1 keys are used by default instead of MD5 keys. Also yast2-ntp-client was updated to match some sntp syntax changes. (bsc#937837) These security issues were fixed: - CVE-2015-8158: Fixed potential infinite loop in ntpq (bsc#962966). - CVE-2015-8138: Zero Origin Timestamp Bypass (bsc#963002). - CVE-2015-7979: Off-path Denial of Service (DoS) attack on authenticated broadcast mode (bsc#962784). - CVE-2015-7978: Stack exhaustion in recursive traversal of restriction list (bsc#963000). - CVE-2015-7977: reslist NULL pointer dereference (bsc#962970). - CVE-2015-7976: ntpq saveconfig command allows dangerous characters in filenames (bsc#962802). - CVE-2015-7975: nextvar() missing length check (bsc#962988). - CVE-2015-7974: Skeleton Key: Missing key check allows impersonation between authenticated peers (bsc#962960). - CVE-2015-7973: Replay attack on authenticated broadcast mode (bsc#962995). - CVE-2015-8140: ntpq vulnerable to replay attacks (bsc#962994). - CVE-2015-8139: Origin Leak: ntpq and ntpdc, disclose origin (bsc#962997). - CVE-2015-5300: MITM attacker could have forced ntpd to make a step larger than the panic threshold (bsc#951629). - CVE-2015-7871: NAK to the Future: Symmetric association authentication bypass via crypto-NAK (bsc#951608). - CVE-2015-7855: decodenetnum() will ASSERT botch instead of returning FAIL on some bogus values (bsc#951608). - CVE-2015-7854: Password Length Memory Corruption Vulnerability (bsc#951608). - CVE-2015-7853: Invalid length data provided by a custom refclock driver could cause a buffer overflow (bsc#951608). - CVE-2015-7852: ntpq atoascii() Memory Corruption Vulnerability (bsc#951608). - CVE-2015-7851: saveconfig Directory Traversal Vulnerability (bsc#951608). - CVE-2015-7850: remote config logfile-keyfile (bsc#951608). - CVE-2015-7849: trusted key use-after-free (bsc#951608). - CVE-2015-7848: mode 7 loop counter underrun (bsc#951608). - CVE-2015-7701: Slow memory leak in CRYPTO_ASSOC (bsc#951608). - CVE-2015-7703: configuration directives "pidfile" and "driftfile" should only be allowed locally (bsc#951608). - CVE-2015-7704, CVE-2015-7705: Clients that receive a KoD should validate the origin timestamp field (bsc#951608). - CVE-2015-7691, CVE-2015-7692, CVE-2015-7702: Incomplete autokey data packet length checks (bsc#951608). These non-security issues were fixed: - fate#320758 bsc#975981: Enable compile-time support for MS-SNTP (--enable-ntp-signd). This replaces the w32 patches in 4.2.4 that added the authreg directive. - bsc#962318: Call /usr/sbin/sntp with full path to synchronize in start-ntpd. When run as cron job, /usr/sbin/ is not in the path, which caused the synchronization to fail. - bsc#782060: Speedup ntpq. - bsc#916617: Add /var/db/ntp-kod. - bsc#956773: Add ntp-ENOBUFS.patch to limit a warning that might happen quite a lot on loaded systems. - bsc#951559,bsc#975496: Fix the TZ offset output of sntp during DST. - Add ntp-fork.patch and build with threads disabled to allow name resolution even when running chrooted. - Add a controlkey line to /etc/ntp.conf if one does not already exist to allow runtime configuuration via ntpq. - bsc#946386: Temporarily disable memlock to avoid problems due to high memory usage during name resolution. - bsc#905885: Use SHA1 instead of MD5 for symmetric keys. - Improve runtime configuration: * Read keytype from ntp.conf * Don't write ntp keys to syslog. - Fix legacy action scripts to pass on command line arguments. - bsc#944300: Remove "kod" from the restrict line in ntp.conf. - bsc#936327: Use ntpq instead of deprecated ntpdc in start-ntpd. - Add a controlkey to ntp.conf to make the above work. - Don't let "keysdir" lines in ntp.conf trigger the "keys" parser. - Disable mode 7 (ntpdc) again, now that we don't use it anymore. - Add "addserver" as a new legacy action. - bsc#910063: Fix the comment regarding addserver in ntp.conf. - bsc#926510: Disable chroot by default. - bsc#920238: Enable ntpdc for backwards compatibility. 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 Software Development Kit 12: zypper in -t patch SUSE-SLE-SDK-12-2016-727=1 - SUSE Linux Enterprise Server 12: zypper in -t patch SUSE-SLE-SERVER-12-2016-727=1 - SUSE Linux Enterprise Desktop 12: zypper in -t patch SUSE-SLE-DESKTOP-12-2016-727=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Software Development Kit 12 (noarch): yast2-ntp-client-devel-doc-3.1.12.4-8.2 - SUSE Linux Enterprise Server 12 (ppc64le s390x x86_64): ntp-4.2.8p6-46.5.2 ntp-debuginfo-4.2.8p6-46.5.2 ntp-debugsource-4.2.8p6-46.5.2 ntp-doc-4.2.8p6-46.5.2 - SUSE Linux Enterprise Server 12 (noarch): yast2-ntp-client-3.1.12.4-8.2 - SUSE Linux Enterprise Desktop 12 (noarch): yast2-ntp-client-3.1.12.4-8.2 - SUSE Linux Enterprise Desktop 12 (x86_64): ntp-4.2.8p6-46.5.2 ntp-debuginfo-4.2.8p6-46.5.2 ntp-debugsource-4.2.8p6-46.5.2 ntp-doc-4.2.8p6-46.5.2 References: https://www.suse.com/security/cve/CVE-2015-5300.html https://www.suse.com/security/cve/CVE-2015-7691.html https://www.suse.com/security/cve/CVE-2015-7692.html https://www.suse.com/security/cve/CVE-2015-7701.html https://www.suse.com/security/cve/CVE-2015-7702.html https://www.suse.com/security/cve/CVE-2015-7703.html https://www.suse.com/security/cve/CVE-2015-7704.html https://www.suse.com/security/cve/CVE-2015-7705.html https://www.suse.com/security/cve/CVE-2015-7848.html https://www.suse.com/security/cve/CVE-2015-7849.html https://www.suse.com/security/cve/CVE-2015-7850.html https://www.suse.com/security/cve/CVE-2015-7851.html https://www.suse.com/security/cve/CVE-2015-7852.html https://www.suse.com/security/cve/CVE-2015-7853.html https://www.suse.com/security/cve/CVE-2015-7854.html https://www.suse.com/security/cve/CVE-2015-7855.html https://www.suse.com/security/cve/CVE-2015-7871.html https://www.suse.com/security/cve/CVE-2015-7973.html https://www.suse.com/security/cve/CVE-2015-7974.html https://www.suse.com/security/cve/CVE-2015-7975.html https://www.suse.com/security/cve/CVE-2015-7976.html https://www.suse.com/security/cve/CVE-2015-7977.html https://www.suse.com/security/cve/CVE-2015-7978.html https://www.suse.com/security/cve/CVE-2015-7979.html https://www.suse.com/security/cve/CVE-2015-8138.html https://www.suse.com/security/cve/CVE-2015-8139.html https://www.suse.com/security/cve/CVE-2015-8140.html https://www.suse.com/security/cve/CVE-2015-8158.html https://bugzilla.suse.com/782060 https://bugzilla.suse.com/905885 https://bugzilla.suse.com/910063 https://bugzilla.suse.com/916617 https://bugzilla.suse.com/920238 https://bugzilla.suse.com/926510 https://bugzilla.suse.com/936327 https://bugzilla.suse.com/937837 https://bugzilla.suse.com/942587 https://bugzilla.suse.com/944300 https://bugzilla.suse.com/946386 https://bugzilla.suse.com/951559 https://bugzilla.suse.com/951608 https://bugzilla.suse.com/951629 https://bugzilla.suse.com/954982 https://bugzilla.suse.com/956773 https://bugzilla.suse.com/962318 https://bugzilla.suse.com/962784 https://bugzilla.suse.com/962802 https://bugzilla.suse.com/962960 https://bugzilla.suse.com/962966 https://bugzilla.suse.com/962970 https://bugzilla.suse.com/962988 https://bugzilla.suse.com/962994 https://bugzilla.suse.com/962995 https://bugzilla.suse.com/962997 https://bugzilla.suse.com/963000 https://bugzilla.suse.com/963002 https://bugzilla.suse.com/975496 https://bugzilla.suse.com/975981 --