openSUSE Security Update : ntp (openSUSE-2016-599)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote openSUSE host is missing a security update.

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).

This update was imported from the SUSE:SLE-12-SP1:Update update
project.

See also :

https://bugzilla.opensuse.org/show_bug.cgi?id=957226
https://bugzilla.opensuse.org/show_bug.cgi?id=977446
https://bugzilla.opensuse.org/show_bug.cgi?id=977450
https://bugzilla.opensuse.org/show_bug.cgi?id=977451
https://bugzilla.opensuse.org/show_bug.cgi?id=977452
https://bugzilla.opensuse.org/show_bug.cgi?id=977455
https://bugzilla.opensuse.org/show_bug.cgi?id=977457
https://bugzilla.opensuse.org/show_bug.cgi?id=977458
https://bugzilla.opensuse.org/show_bug.cgi?id=977459
https://bugzilla.opensuse.org/show_bug.cgi?id=977461
https://bugzilla.opensuse.org/show_bug.cgi?id=977464

Solution :

Update the affected ntp packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

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