RedHat: RHSA-2016-0063:01 Important: ntp security update
Summary
The Network Time Protocol (NTP) is used to synchronize a computer's time
with a referenced time source.
It was discovered that ntpd as a client did not correctly check the
originate timestamp in received packets. A remote attacker could use this
flaw to send a crafted packet to an ntpd client that would effectively
disable synchronization with the server, or push arbitrary offset/delay
measurements to modify the time on the client. (CVE-2015-8138)
All ntp users are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue. After installing the
update, the ntpd daemon will restart automatically.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2015-8138 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Desktop (v. 6):
Source:
ntp-4.2.6p5-5.el6_7.4.src.rpm
i386:
ntp-4.2.6p5-5.el6_7.4.i686.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.i686.rpm
ntpdate-4.2.6p5-5.el6_7.4.i686.rpm
x86_64:
ntp-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntpdate-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386:
ntp-debuginfo-4.2.6p5-5.el6_7.4.i686.rpm
ntp-perl-4.2.6p5-5.el6_7.4.i686.rpm
noarch:
ntp-doc-4.2.6p5-5.el6_7.4.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-perl-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
ntp-4.2.6p5-5.el6_7.4.src.rpm
x86_64:
ntp-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntpdate-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
noarch:
ntp-doc-4.2.6p5-5.el6_7.4.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-perl-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
ntp-4.2.6p5-5.el6_7.4.src.rpm
i386:
ntp-4.2.6p5-5.el6_7.4.i686.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.i686.rpm
ntpdate-4.2.6p5-5.el6_7.4.i686.rpm
ppc64:
ntp-4.2.6p5-5.el6_7.4.ppc64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.ppc64.rpm
ntpdate-4.2.6p5-5.el6_7.4.ppc64.rpm
s390x:
ntp-4.2.6p5-5.el6_7.4.s390x.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.s390x.rpm
ntpdate-4.2.6p5-5.el6_7.4.s390x.rpm
x86_64:
ntp-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntpdate-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
i386:
ntp-debuginfo-4.2.6p5-5.el6_7.4.i686.rpm
ntp-perl-4.2.6p5-5.el6_7.4.i686.rpm
noarch:
ntp-doc-4.2.6p5-5.el6_7.4.noarch.rpm
ppc64:
ntp-debuginfo-4.2.6p5-5.el6_7.4.ppc64.rpm
ntp-perl-4.2.6p5-5.el6_7.4.ppc64.rpm
s390x:
ntp-debuginfo-4.2.6p5-5.el6_7.4.s390x.rpm
ntp-perl-4.2.6p5-5.el6_7.4.s390x.rpm
x86_64:
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-perl-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
ntp-4.2.6p5-5.el6_7.4.src.rpm
i386:
ntp-4.2.6p5-5.el6_7.4.i686.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.i686.rpm
ntpdate-4.2.6p5-5.el6_7.4.i686.rpm
x86_64:
ntp-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntpdate-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
i386:
ntp-debuginfo-4.2.6p5-5.el6_7.4.i686.rpm
ntp-perl-4.2.6p5-5.el6_7.4.i686.rpm
noarch:
ntp-doc-4.2.6p5-5.el6_7.4.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-5.el6_7.4.x86_64.rpm
ntp-perl-4.2.6p5-5.el6_7.4.x86_64.rpm
Red Hat Enterprise Linux Client (v. 7):
Source:
ntp-4.2.6p5-22.el7_2.1.src.rpm
x86_64:
ntp-4.2.6p5-22.el7_2.1.x86_64.rpm
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
ntpdate-4.2.6p5-22.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch:
ntp-doc-4.2.6p5-22.el7_2.1.noarch.rpm
ntp-perl-4.2.6p5-22.el7_2.1.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
sntp-4.2.6p5-22.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
ntp-4.2.6p5-22.el7_2.1.src.rpm
x86_64:
ntp-4.2.6p5-22.el7_2.1.x86_64.rpm
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
ntpdate-4.2.6p5-22.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
noarch:
ntp-doc-4.2.6p5-22.el7_2.1.noarch.rpm
ntp-perl-4.2.6p5-22.el7_2.1.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
sntp-4.2.6p5-22.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
ntp-4.2.6p5-22.el7_2.1.src.rpm
ppc64:
ntp-4.2.6p5-22.el7_2.1.ppc64.rpm
ntp-debuginfo-4.2.6p5-22.el7_2.1.ppc64.rpm
ntpdate-4.2.6p5-22.el7_2.1.ppc64.rpm
ppc64le:
ntp-4.2.6p5-22.el7_2.1.ppc64le.rpm
ntp-debuginfo-4.2.6p5-22.el7_2.1.ppc64le.rpm
ntpdate-4.2.6p5-22.el7_2.1.ppc64le.rpm
s390x:
ntp-4.2.6p5-22.el7_2.1.s390x.rpm
ntp-debuginfo-4.2.6p5-22.el7_2.1.s390x.rpm
ntpdate-4.2.6p5-22.el7_2.1.s390x.rpm
x86_64:
ntp-4.2.6p5-22.el7_2.1.x86_64.rpm
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
ntpdate-4.2.6p5-22.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
noarch:
ntp-doc-4.2.6p5-22.el7_2.1.noarch.rpm
ntp-perl-4.2.6p5-22.el7_2.1.noarch.rpm
ppc64:
ntp-debuginfo-4.2.6p5-22.el7_2.1.ppc64.rpm
sntp-4.2.6p5-22.el7_2.1.ppc64.rpm
ppc64le:
ntp-debuginfo-4.2.6p5-22.el7_2.1.ppc64le.rpm
sntp-4.2.6p5-22.el7_2.1.ppc64le.rpm
s390x:
ntp-debuginfo-4.2.6p5-22.el7_2.1.s390x.rpm
sntp-4.2.6p5-22.el7_2.1.s390x.rpm
x86_64:
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
sntp-4.2.6p5-22.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
ntp-4.2.6p5-22.el7_2.1.src.rpm
x86_64:
ntp-4.2.6p5-22.el7_2.1.x86_64.rpm
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
ntpdate-4.2.6p5-22.el7_2.1.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
noarch:
ntp-doc-4.2.6p5-22.el7_2.1.noarch.rpm
ntp-perl-4.2.6p5-22.el7_2.1.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-22.el7_2.1.x86_64.rpm
sntp-4.2.6p5-22.el7_2.1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
Updated ntp packages that fix one security issue are now available for RedHat Enterprise Linux 6 and 7.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, noarch, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64
Bugs Fixed
1299442 - CVE-2015-8138 ntp: missing check for zero originate timestamp