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[security-announce] SUSE-SU-2016:1584-1: important: Security update for ntp
SUSE Security Update: Security update for ntp

Announcement ID: SUSE-SU-2016:1584-1
Rating: important
References: #979302 #981422 #982056 #982064 #982065 #982066
#982067 #982068
Cross-References: CVE-2016-4953 CVE-2016-4954 CVE-2016-4955
CVE-2016-4956 CVE-2016-4957
Affected Products:
SUSE Linux Enterprise Server 11-SP4
SUSE Linux Enterprise Debuginfo 11-SP4

An update that solves 5 vulnerabilities and has three fixes
is now available.


ntp was updated to version 4.2.8p8 to fix five security issues.

These security issues were fixed:
- CVE-2016-4953: Bad authentication demobilizes ephemeral associations
- CVE-2016-4954: Processing spoofed server packets (bsc#982066).
- CVE-2016-4955: Autokey association reset (bsc#982067).
- CVE-2016-4956: Broadcast interleave (bsc#982068).
- CVE-2016-4957: CRYPTO_NAK crash (bsc#982064).

These non-security issues were fixed:
- Keep the parent process alive until the daemon has finished
initialisation, to make sure that the PID file exists when the parent
- 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().
- 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".

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-12612=1

- SUSE Linux Enterprise Debuginfo 11-SP4:

zypper in -t patch dbgsp4-ntp-12612=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):


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



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