Red Hat Security AdvisoryRHSA-2015:2231
ntp security, bug fix, and enhancement update
Released 2015-11-19 · Red Hat rating Moderate · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux Client (v. 7) ntp-4.2.6p5-22.el7, ntpdate-4.2.6p5-22.el7
- Red Hat Enterprise Linux Client Optional (v. 7) ntp-doc-4.2.6p5-22.el7, ntp-perl-4.2.6p5-22.el7, sntp-4.2.6p5-22.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) ntp-4.2.6p5-22.el7, ntpdate-4.2.6p5-22.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) ntp-doc-4.2.6p5-22.el7, ntp-perl-4.2.6p5-22.el7, sntp-4.2.6p5-22.el7
- Red Hat Enterprise Linux Server (v. 7) ntp-4.2.6p5-22.el7, ntpdate-4.2.6p5-22.el7
- Red Hat Enterprise Linux Server Optional (v. 7) ntp-doc-4.2.6p5-22.el7, ntp-perl-4.2.6p5-22.el7, sntp-4.2.6p5-22.el7
- Red Hat Enterprise Linux Workstation (v. 7) ntp-4.2.6p5-22.el7, ntpdate-4.2.6p5-22.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) ntp-doc-4.2.6p5-22.el7, ntp-perl-4.2.6p5-22.el7, sntp-4.2.6p5-22.el7
Fixes 5 records
Priority MEDIUM 41
ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does not generate MD5 keys with sufficient entropy on big endian machines when the lowest order byte of the temp variable is between 0x20 and 0x7f and…
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.05292 · Published 2017-08-09 · Partial fix CWE-331
Priority LOW 37
The read_network_packet function in ntp_io.c in ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X does not properly determine whether a source IP address is an IPv6 loopback address, which makes it easier for remote attac…
CVSS 2.0MEDIUM 6.8· Network · No auth · Interaction — · EPSS 0.04532 · Published 2015-10-04 · Partial fix CWE-20
Priority LOW 35
ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet…
CVSS 2.0MEDIUM 5.8· Network · No auth · Interaction — · EPSS 0.06135 · Published 2015-10-04 · Partial fix CWE-20
Priority LOW 22
The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-midd…
CVSS 2.0MEDIUM 4.3· Adjacent network · No auth · Interaction — · EPSS 0.00902 · Published 2015-04-08 · Partial fix CWE-17
Priority LOW 14
The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers…
CVSS 2.0LOW 1.8· Adjacent network · No auth · Interaction — · EPSS 0.02243 · Published 2015-04-08 · Fixed CWE-17
THREATIST.IORead the docs