[security-announce] SUSE-SU-2016:1278-1: important: Security update for ntp

[news 28]

SUSE Security Update: Security update for ntp

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Announcement ID: SUSE-SU-2016:1278-1

Rating: important

References: #957226 #977446 #977450 #977451 #977452 #977455

#977457 #977458 #977459 #977461 #977464

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

 

Affected Products:

SUSE Linux Enterprise Server 11-SP4

SUSE Linux Enterprise Debuginfo 11-SP4

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An update that fixes 12 vulnerabilities is now available.

 

Description:

 

 

This update for ntp to 4.2.8p7 fixes the following issues:

 

* CVE-2016-1547, bsc#977459: Validate crypto-NAKs, AKA: CRYPTO-NAK DoS.

* CVE-2016-1548, bsc#977461: Interleave-pivot

* CVE-2016-1549, bsc#977451: Sybil vulnerability: ephemeral association

attack.

* CVE-2016-1550, bsc#977464: Improve NTP security against buffer

comparison timing attacks.

* CVE-2016-1551, bsc#977450: Refclock impersonation vulnerability

* CVE-2016-2516, bsc#977452: Duplicate IPs on unconfig directives will

cause an assertion botch in ntpd.

* CVE-2016-2517, bsc#977455: remote configuration trustedkey/

requestkey/controlkey values are not properly validated.

* CVE-2016-2518, bsc#977457: Crafted addpeer with hmode > 7 causes array

wraparound with MATCH_ASSOC.

* CVE-2016-2519, bsc#977458: ctl_getitem() return value not always checked.

* This update also improves the fixes for: CVE-2015-7704, CVE-2015-7705,

CVE-2015-7974

 

Bugs fixed:

- Restrict the parser in the startup script to the first

occurrance of "keys" and "controlkey" in ntp.conf (bsc#957226).

 

 

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-12553=1

 

- SUSE Linux Enterprise Debuginfo 11-SP4:

 

zypper in -t patch dbgsp4-ntp-12553=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-4.2.8p7-11.1

ntp-doc-4.2.8p7-11.1

 

- SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 ppc64 s390x x86_64):

 

ntp-debuginfo-4.2.8p7-11.1

ntp-debugsource-4.2.8p7-11.1

 

 

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://bugzilla.suse.com/957226

https://bugzilla.suse.com/977446

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

 

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