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Red Hat Enterprise Linux: RHSA-2017:3071-01 Moderate NTP Security Update

red hat
Calendar Grey October 26, 2017
Scroller Redhat
New minor ntp security patch released for Red Hat Enterprise Linux 6, targeting various vulnerabilities and enhancements.
An update for ntp is now available for Red Hat Enterprise Linux 6

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):
* Two vulnerabilities were discovered in the NTP server's parsing of configuration directives. A remote, authenticated attacker could cause ntpd to crash by sending a crafted message. (CVE-2017-6463, CVE-2017-6464)
* A vulnerability was found in NTP, in the parsing of packets from the /dev/datum device. A malicious device could send crafted messages, causing ntpd to crash. (CVE-2017-6462)
Red Hat would like to thank the NTP project for reporting these issues. Upstream acknowledges Cure53 as the original reporter of these issues.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux Denial of Service Moderate Severity NTP Security Update ntpd

References

https://access.redhat.com/security/cve/CVE-2017-6462 https://access.redhat.com/security/cve/CVE-2017-6463 https://access.redhat.com/security/cve/CVE-2017-6464 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: ntp-4.2.6p5-12.el6_9.1.src.rpm
i386: ntp-4.2.6p5-12.el6_9.1.i686.rpm ntp-debuginfo-4.2.6p5-12.el6_9.1.i686.rpm ntpdate-4.2.6p5-12.el6_9.1.i686.rpm
x86_64: ntp-4.2.6p5-12.el6_9.1.x86_64.rpm ntp-debuginfo-4.2.6p5-12.el6_9.1.x86_64.rpm ntpdate-4.2.6p5-12.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: ntp-debuginfo-4.2.6p5-12.el6_9.1.i686.rpm ntp-perl-4.2.6p5-12.el6_9.1.i686.rpm
noarch: ntp-doc-4.2.6p5-12.el6_9.1.noarch.rpm
x86_64: ntp-debuginfo-4.2.6p5-12.el6_9.1.x86_64.rpm ntp-perl-4.2.6p5-12.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: ntp-4.2.6p5-12.el6_9.1.src.rpm
x86_64: ntp-4.2.6p5-12.el6_9.1.x86_64.rpm ntp-debuginfo-4.2.6p5-12.el6_9.1.x86_64.rpm ntpdate-4.2.6p5-12.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
noarch: ntp-doc-4.2.6p5-12.el6_9.1.noarch.rpm
x86_64: ntp-debuginfo-4.2.6p5-12.el6_9.1.x86_64.rpm ntp-perl-4.2.6p5-12.el6_9.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: ntp-4.2.6p5-12.el6_9.1.src.rpm
i386: ntp-4.2.6p5-12.el6_9.1.i686.rpm ntp-debuginfo-4.2.6p5-12.el6_9.1.i686.rpm ntpdate-4.2.6p5-12.el6_9.1.i686.rpm
ppc64: ntp-4.2.6p5-12.el6_9.1.ppc64.rpm ntp-debuginfo-4.2.6p5-12.el6_9.1.ppc64.rpm ntpdate-4.2.6p5-12.el6_9.1.ppc64.rpm


Read the Full Advisory


Advisory ID: RHSA-2017:3071-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:3071
Issue date: 2017-10-26

Topic

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 impactof Moderate. 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 Red Hat Enterprise Linux Denial of Service Moderate Severity NTP Security Update ntpd

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

Bugs Fixed

1433987 - CVE-2017-6464 ntp: Denial of Service via Malformed Config

1433995 - CVE-2017-6462 ntp: Buffer Overflow in DPTS Clock

1434002 - CVE-2017-6463 ntp: Authenticated DoS via Malicious Config Option

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