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Red Hat Enterprise Linux 6.7 RHSA-2018:3853 Low: ntp Denial Of Service Risk

red hat
Calendar Grey December 19, 2018
Dist Redhat Esm H88
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ====================================================
An update for ntp is now available for Red Hat Enterprise Linux 6.7 Extended Update Support

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.

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.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat low severity ntp update

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

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:3853-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3853
Issue date: 2018-12-19

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.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat low severity ntp update

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

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