RedHat: RHSA-2017-3071:01 Moderate: 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):
* 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.
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-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
s390x:
ntp-4.2.6p5-12.el6_9.1.s390x.rpm
ntp-debuginfo-4.2.6p5-12.el6_9.1.s390x.rpm
ntpdate-4.2.6p5-12.el6_9.1.s390x.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 Server 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
ppc64:
ntp-debuginfo-4.2.6p5-12.el6_9.1.ppc64.rpm
ntp-perl-4.2.6p5-12.el6_9.1.ppc64.rpm
s390x:
ntp-debuginfo-4.2.6p5-12.el6_9.1.s390x.rpm
ntp-perl-4.2.6p5-12.el6_9.1.s390x.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 Workstation (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 Workstation 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
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.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.
Topic
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