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AUSCERT External Security Bulletin Redistribution
ESB-2016.1525
SUSE Security Update: Security update for ntp
16 June 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: ntp
Publisher: SUSE
Operating System: SUSE
Impact/Access: Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-4957 CVE-2016-4956 CVE-2016-4955
CVE-2016-4954 CVE-2016-4953
Reference: ESB-2016.1512
ESB-2016.1481
ESB-2016.1411
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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.
Description:
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
(bsc#982065).
- 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
returns.
- 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):
ntp-4.2.8p8-14.1
ntp-doc-4.2.8p8-14.1
- SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 ppc64 s390x x86_64):
ntp-debuginfo-4.2.8p8-14.1
ntp-debugsource-4.2.8p8-14.1
References:
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/979302
https://bugzilla.suse.com/981422
https://bugzilla.suse.com/982056
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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