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

[news 28]

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

 

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