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=====================================================================
Red Hat Security Advisory
Synopsis: Low: ntp security update
Advisory ID: RHSA-2018:3854-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3854
Issue date: 2018-12-19
CVE Names: CVE-2018-12327
=====================================================================
1. Summary:
An update for ntp is now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
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 Optional (v. 6) - i386, noarch, ppc64, s390x,
x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, noarch, x86_64
3. Description:
The Network Time Protocol (NTP) is used to synchronize a computer's time
with another referenced time source. These packages include the ntpd
service which continuously adjusts system time and utilities used to query
and configure the ntpd service.
Security Fix(es):
* ntp: Stack-based buffer overflow in ntpq and ntpdc allows denial of
service or code execution (CVE-2018-12327)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing this update, the ntpd daemon will restart automatically.
5. Bugs fixed (https://bugzilla.redhat.com/):
1593580 - CVE-2018-12327 ntp: Stack-based buffer overflow in ntpq and ntpdc
allows denial of service or code execution
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source:
ntp-4.2.6p5-15.el6_10.src.rpm
i386:
ntp-4.2.6p5-15.el6_10.i686.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.i686.rpm
ntpdate-4.2.6p5-15.el6_10.i686.rpm
x86_64:
ntp-4.2.6p5-15.el6_10.x86_64.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntpdate-4.2.6p5-15.el6_10.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386:
ntp-debuginfo-4.2.6p5-15.el6_10.i686.rpm
ntp-perl-4.2.6p5-15.el6_10.i686.rpm
noarch:
ntp-doc-4.2.6p5-15.el6_10.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntp-perl-4.2.6p5-15.el6_10.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
ntp-4.2.6p5-15.el6_10.src.rpm
x86_64:
ntp-4.2.6p5-15.el6_10.x86_64.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntpdate-4.2.6p5-15.el6_10.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
noarch:
ntp-doc-4.2.6p5-15.el6_10.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntp-perl-4.2.6p5-15.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
ntp-4.2.6p5-15.el6_10.src.rpm
i386:
ntp-4.2.6p5-15.el6_10.i686.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.i686.rpm
ntpdate-4.2.6p5-15.el6_10.i686.rpm
ppc64:
ntp-4.2.6p5-15.el6_10.ppc64.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.ppc64.rpm
ntpdate-4.2.6p5-15.el6_10.ppc64.rpm
s390x:
ntp-4.2.6p5-15.el6_10.s390x.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.s390x.rpm
ntpdate-4.2.6p5-15.el6_10.s390x.rpm
x86_64:
ntp-4.2.6p5-15.el6_10.x86_64.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntpdate-4.2.6p5-15.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
i386:
ntp-debuginfo-4.2.6p5-15.el6_10.i686.rpm
ntp-perl-4.2.6p5-15.el6_10.i686.rpm
noarch:
ntp-doc-4.2.6p5-15.el6_10.noarch.rpm
ppc64:
ntp-debuginfo-4.2.6p5-15.el6_10.ppc64.rpm
ntp-perl-4.2.6p5-15.el6_10.ppc64.rpm
s390x:
ntp-debuginfo-4.2.6p5-15.el6_10.s390x.rpm
ntp-perl-4.2.6p5-15.el6_10.s390x.rpm
x86_64:
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntp-perl-4.2.6p5-15.el6_10.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
ntp-4.2.6p5-15.el6_10.src.rpm
i386:
ntp-4.2.6p5-15.el6_10.i686.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.i686.rpm
ntpdate-4.2.6p5-15.el6_10.i686.rpm
x86_64:
ntp-4.2.6p5-15.el6_10.x86_64.rpm
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntpdate-4.2.6p5-15.el6_10.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
i386:
ntp-debuginfo-4.2.6p5-15.el6_10.i686.rpm
ntp-perl-4.2.6p5-15.el6_10.i686.rpm
noarch:
ntp-doc-4.2.6p5-15.el6_10.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-15.el6_10.x86_64.rpm
ntp-perl-4.2.6p5-15.el6_10.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/
7. References:
https://access.redhat.com/security/cve/CVE-2018-12327
https://access.redhat.com/security/updates/classification/#low
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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