[security-announce] SUSE-SU-2016:1568-1: important: Security update for ntp

Fabricante: SuSe
Fecha: 14/06/2016
Identificador: SUSE-SU-2016:1568-1
[security-announce] SUSE-SU-2016:1568-1: important: Security update for ntp
SUSE Security Update: Security update for ntp ______________________________________________________________________________ Announcement ID: SUSE-SU-2016:1568-1 Rating: important References: #957226 #962960 #977450 #977451 #977452 #977455 #977457 #977458 #977459 #977461 #977464 #979302 #979981 #981422 #982064 #982065 #982066 #982067 #982068 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 CVE-2016-4953 CVE-2016-4954 CVE-2016-4955 CVE-2016-4956 CVE-2016-4957 Affected Products: SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Desktop 12 ______________________________________________________________________________ An update that solves 17 vulnerabilities and has two fixes is now available. Description: ntp was updated to version 4.2.8p8 to fix 17 security issues. These security issues were fixed: - CVE-2016-4956: Broadcast interleave (bsc#982068). - CVE-2016-2518: Crafted addpeer with hmode > 7 causes array wraparound with MATCH_ASSOC (bsc#977457). - CVE-2016-2519: ctl_getitem() return value not always checked (bsc#977458). - CVE-2016-4954: Processing spoofed server packets (bsc#982066). - CVE-2016-4955: Autokey association reset (bsc#982067). - CVE-2015-7974: NTP did not verify peer associations of symmetric keys when authenticating packets, which might allowed remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key (bsc#962960). - CVE-2016-4957: CRYPTO_NAK crash (bsc#982064). - CVE-2016-2516: Duplicate IPs on unconfig directives will cause an assertion botch (bsc#977452). - CVE-2016-2517: Remote configuration trustedkey/requestkey values are not properly validated (bsc#977455). - CVE-2016-4953: Bad authentication demobilizes ephemeral associations (bsc#982065). - CVE-2016-1547: CRYPTO-NAK DoS (bsc#977459). - CVE-2016-1551: Refclock impersonation vulnerability, AKA: refclock-peering (bsc#977450). - CVE-2016-1550: Improve NTP security against buffer comparison timing attacks, authdecrypt-timing, AKA: authdecrypt-timing (bsc#977464). - CVE-2016-1548: Interleave-pivot - MITIGATION ONLY (bsc#977461). - CVE-2016-1549: Sybil vulnerability: ephemeral association attack, AKA: ntp-sybil - MITIGATION ONLY (bsc#977451). This release also contained improved patches for CVE-2015-7704, CVE-2015-7705, CVE-2015-7974. These non-security issues were fixed: - bsc#979302: Change the process name of the forking DNS worker process to avoid the impression that ntpd is started twice. - bsc#981422: Don't ignore SIGCHILD because it breaks wait(). - bsc#979981: ntp-wait does not accept fractional seconds, so use 1 instead of 0.2 in ntp-wait.service. - Separate the creation of ntp.keys and key #1 in it to avoid problems when upgrading installations that have the file, but no key #1, which is needed e.g. by "rcntp addserver". - bsc#957226: Restrict the parser in the startup script to the first occurrance of "keys" and "controlkey" in ntp.conf. 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: zypper in -t patch SUSE-SLE-SERVER-12-2016-933=1 - SUSE Linux Enterprise Desktop 12: zypper in -t patch SUSE-SLE-DESKTOP-12-2016-933=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server 12 (ppc64le s390x x86_64): ntp-4.2.8p8-46.8.1 ntp-debuginfo-4.2.8p8-46.8.1 ntp-debugsource-4.2.8p8-46.8.1 ntp-doc-4.2.8p8-46.8.1 - SUSE Linux Enterprise Desktop 12 (x86_64): ntp-4.2.8p8-46.8.1 ntp-debuginfo-4.2.8p8-46.8.1 ntp-debugsource-4.2.8p8-46.8.1 ntp-doc-4.2.8p8-46.8.1 References: 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-2015-7974.html https://www.suse.com/security/cve/CVE-2016-1547.html https://www.suse.com/security/cve/CVE-2016-1548.html https://www.suse.com/security/cve/CVE-2016-1549.html https://www.suse.com/security/cve/CVE-2016-1550.html https://www.suse.com/security/cve/CVE-2016-1551.html https://www.suse.com/security/cve/CVE-2016-2516.html https://www.suse.com/security/cve/CVE-2016-2517.html https://www.suse.com/security/cve/CVE-2016-2518.html https://www.suse.com/security/cve/CVE-2016-2519.html https://www.suse.com/security/cve/CVE-2016-4953.html https://www.suse.com/security/cve/CVE-2016-4954.html https://www.suse.com/security/cve/CVE-2016-4955.html https://www.suse.com/security/cve/CVE-2016-4956.html https://www.suse.com/security/cve/CVE-2016-4957.html https://bugzilla.suse.com/957226 https://bugzilla.suse.com/962960 https://bugzilla.suse.com/977450 https://bugzilla.suse.com/977451 https://bugzilla.suse.com/977452 https://bugzilla.suse.com/977455 https://bugzilla.suse.com/977457 https://bugzilla.suse.com/977458 https://bugzilla.suse.com/977459 https://bugzilla.suse.com/977461 https://bugzilla.suse.com/977464 https://bugzilla.suse.com/979302 https://bugzilla.suse.com/979981 https://bugzilla.suse.com/981422 https://bugzilla.suse.com/982064 https://bugzilla.suse.com/982065 https://bugzilla.suse.com/982066 https://bugzilla.suse.com/982067 https://bugzilla.suse.com/982068 --