RedHat: RHSA-2018-3853:01 Low: ntp security update
Summary
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.
Summary
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.
References
https://access.redhat.com/security/cve/CVE-2018-12327 https://access.redhat.com/security/updates/classification/#low
Package List
Red Hat Enterprise Linux HPC Node EUS (v. 6.7):
Source:
ntp-4.2.6p5-5.el6_7.6.src.rpm
x86_64:
ntp-4.2.6p5-5.el6_7.6.x86_64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.6.x86_64.rpm
ntpdate-4.2.6p5-5.el6_7.6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):
noarch:
ntp-doc-4.2.6p5-5.el6_7.6.noarch.rpm
x86_64:
ntp-debuginfo-4.2.6p5-5.el6_7.6.x86_64.rpm
ntp-perl-4.2.6p5-5.el6_7.6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 6.7):
Source:
ntp-4.2.6p5-5.el6_7.6.src.rpm
i386:
ntp-4.2.6p5-5.el6_7.6.i686.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.6.i686.rpm
ntpdate-4.2.6p5-5.el6_7.6.i686.rpm
ppc64:
ntp-4.2.6p5-5.el6_7.6.ppc64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.6.ppc64.rpm
ntpdate-4.2.6p5-5.el6_7.6.ppc64.rpm
s390x:
ntp-4.2.6p5-5.el6_7.6.s390x.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.6.s390x.rpm
ntpdate-4.2.6p5-5.el6_7.6.s390x.rpm
x86_64:
ntp-4.2.6p5-5.el6_7.6.x86_64.rpm
ntp-debuginfo-4.2.6p5-5.el6_7.6.x86_64.rpm
ntpdate-4.2.6p5-5.el6_7.6.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 6.7):
i386:
ntp-debuginfo-4.2.6p5-5.el6_7.6.i686.rpm
ntp-perl-4.2.6p5-5.el6_7.6.i686.rpm
noarch:
ntp-doc-4.2.6p5-5.el6_7.6.noarch.rpm
ppc64:
ntp-debuginfo-4.2.6p5-5.el6_7.6.ppc64.rpm
ntp-perl-4.2.6p5-5.el6_7.6.ppc64.rpm
s390x:
ntp-debuginfo-4.2.6p5-5.el6_7.6.s390x.rpm
ntp-perl-4.2.6p5-5.el6_7.6.s390x.rpm
x86_64:
ntp-debuginfo-4.2.6p5-5.el6_7.6.x86_64.rpm
ntp-perl-4.2.6p5-5.el6_7.6.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
An update for ntp is now available for Red Hat Enterprise Linux 6.7Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux HPC Node EUS (v. 6.7) - x86_64
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - noarch, x86_64
Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - i386, noarch, ppc64, s390x, x86_64
Bugs Fixed
1593580 - CVE-2018-12327 ntp: Stack-based buffer overflow in ntpq and ntpdc allows denial of service or code execution