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Red Hat Product Errata RHSA-2015:0104 - Security Advisory
Issued:
2015-01-28
Updated:
2015-01-28

RHSA-2015:0104 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: ntp security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Updated ntp packages that fix several security issues are now available for
Red Hat Enterprise Linux 6.5 Extended Update Support.

Red Hat Product Security has rated this update as having Important security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.

Description

The Network Time Protocol (NTP) is used to synchronize a computer's time
with a referenced time source.

Multiple buffer overflow flaws were discovered in ntpd's crypto_recv(),
ctl_putdata(), and configure() functions. A remote attacker could use
either of these flaws to send a specially crafted request packet that could
crash ntpd or, potentially, execute arbitrary code with the privileges of
the ntp user. Note: the crypto_recv() flaw requires non-default
configurations to be active, while the ctl_putdata() flaw, by default, can
only be exploited via local attackers, and the configure() flaw requires
additional authentication to exploit. (CVE-2014-9295)

It was found that ntpd automatically generated weak keys for its internal
use if no ntpdc request authentication key was specified in the ntp.conf
configuration file. A remote attacker able to match the configured IP
restrictions could guess the generated key, and possibly use it to send
ntpdc query or configuration requests. (CVE-2014-9293)

It was found that ntp-keygen used a weak method for generating MD5 keys.
This could possibly allow an attacker to guess generated MD5 keys that
could then be used to spoof an NTP client or server. Note: it is
recommended to regenerate any MD5 keys that had explicitly been generated
with ntp-keygen; the default installation does not contain such keys.
(CVE-2014-9294)

A missing return statement in the receive() function could potentially
allow a remote attacker to bypass NTP's authentication mechanism.
(CVE-2014-9296)

All ntp users are advised to upgrade to this updated package, which
contains backported patches to resolve these issues. After installing the
update, the ntpd daemon will restart automatically.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5 i386
  • Red Hat Enterprise Linux Server - AUS 6.5 x86_64
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.5 s390x
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.5 ppc64
  • Red Hat Enterprise Linux Server - TUS 6.5 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.5 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.5 i386
  • Red Hat Enterprise Linux EUS Compute Node 6.5 x86_64

Fixes

  • BZ - 1176032 - CVE-2014-9293 ntp: automatic generation of weak default key in config_auth()
  • BZ - 1176035 - CVE-2014-9294 ntp: ntp-keygen uses weak random number generator and seed when generating MD5 keys
  • BZ - 1176037 - CVE-2014-9295 ntp: Multiple buffer overflows via specially-crafted packets
  • BZ - 1176040 - CVE-2014-9296 ntp: receive() missing return on error

CVEs

  • CVE-2014-9294
  • CVE-2014-9295
  • CVE-2014-9293
  • CVE-2014-9296

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5

SRPM
ntp-4.2.6p5-2.el6_5.src.rpm SHA-256: 568a1f455b7bc9f4d9d9f38b37d22282efbfd678c4bb0fe97945b2b00429ac29
x86_64
ntp-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 2f463059196c8f800e06f4501d1265a20d517e5635724591dbd49ab44bacb5a3
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-doc-4.2.6p5-2.el6_5.noarch.rpm SHA-256: 511030ea8b3631ce0d4cef2f13167c121ad268fcecc418af0c2992a5d413bd96
ntp-perl-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: aeca5b1c2e032b1d707cb5dac62a8b6af75e9d26069b1f675814b89b8d350752
ntpdate-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 3587a08c1c4413b7d674a1d142dd54b52769dface7e992061eb0e089c1250ed6
i386
ntp-4.2.6p5-2.el6_5.i686.rpm SHA-256: 5c18355e61a5e476eb2c3beed5f93fe3ab67fe919f4bfee078037708750fcae3
ntp-debuginfo-4.2.6p5-2.el6_5.i686.rpm SHA-256: 0bddfa04284995c10d9c93ba8fc75461efd8bd581264cba53883e3c794859af9
ntp-debuginfo-4.2.6p5-2.el6_5.i686.rpm SHA-256: 0bddfa04284995c10d9c93ba8fc75461efd8bd581264cba53883e3c794859af9
ntp-doc-4.2.6p5-2.el6_5.noarch.rpm SHA-256: 511030ea8b3631ce0d4cef2f13167c121ad268fcecc418af0c2992a5d413bd96
ntp-perl-4.2.6p5-2.el6_5.i686.rpm SHA-256: dca25dbe17207e7d0a258c7a35786dba210a8dd1d2469022e56eb936184c8523
ntpdate-4.2.6p5-2.el6_5.i686.rpm SHA-256: 56c7e4496840041e898f4c44aaa41be4d6c1a27d67d15837f87d02b6837d0079

Red Hat Enterprise Linux Server - AUS 6.5

SRPM
ntp-4.2.6p5-2.el6_5.src.rpm SHA-256: 568a1f455b7bc9f4d9d9f38b37d22282efbfd678c4bb0fe97945b2b00429ac29
x86_64
ntp-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 2f463059196c8f800e06f4501d1265a20d517e5635724591dbd49ab44bacb5a3
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-doc-4.2.6p5-2.el6_5.noarch.rpm SHA-256: 511030ea8b3631ce0d4cef2f13167c121ad268fcecc418af0c2992a5d413bd96
ntp-perl-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: aeca5b1c2e032b1d707cb5dac62a8b6af75e9d26069b1f675814b89b8d350752
ntpdate-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 3587a08c1c4413b7d674a1d142dd54b52769dface7e992061eb0e089c1250ed6

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.5

SRPM
ntp-4.2.6p5-2.el6_5.src.rpm SHA-256: 568a1f455b7bc9f4d9d9f38b37d22282efbfd678c4bb0fe97945b2b00429ac29
s390x
ntp-4.2.6p5-2.el6_5.s390x.rpm SHA-256: a2739c305dbd3cf3545f4fb0626b5e74a082a621b8123f2a4b54a98007d95220
ntp-debuginfo-4.2.6p5-2.el6_5.s390x.rpm SHA-256: 11ea1507a31fc196c51450b6daded2397e1ed4c8b3b4e8af213d6780b4db6406
ntp-debuginfo-4.2.6p5-2.el6_5.s390x.rpm SHA-256: 11ea1507a31fc196c51450b6daded2397e1ed4c8b3b4e8af213d6780b4db6406
ntp-doc-4.2.6p5-2.el6_5.noarch.rpm SHA-256: 511030ea8b3631ce0d4cef2f13167c121ad268fcecc418af0c2992a5d413bd96
ntp-perl-4.2.6p5-2.el6_5.s390x.rpm SHA-256: e6511ec5530b17ea6ef3f1894e7f6d30b768c66c90bc9624b4c182678248f896
ntpdate-4.2.6p5-2.el6_5.s390x.rpm SHA-256: 160e3122c75cffae2f5b9451017a498e6a8294b121fbcfbac2f5f6bdc134f67c

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.5

SRPM
ntp-4.2.6p5-2.el6_5.src.rpm SHA-256: 568a1f455b7bc9f4d9d9f38b37d22282efbfd678c4bb0fe97945b2b00429ac29
ppc64
ntp-4.2.6p5-2.el6_5.ppc64.rpm SHA-256: 1d4db7ae86156f982ed2321bba326cc8353016c86a4b93c528b2b91deb152b33
ntp-debuginfo-4.2.6p5-2.el6_5.ppc64.rpm SHA-256: d1fda240fef376c001c05529a0d4619d9207ba94ec026d41e526be35e3c2f2ad
ntp-debuginfo-4.2.6p5-2.el6_5.ppc64.rpm SHA-256: d1fda240fef376c001c05529a0d4619d9207ba94ec026d41e526be35e3c2f2ad
ntp-doc-4.2.6p5-2.el6_5.noarch.rpm SHA-256: 511030ea8b3631ce0d4cef2f13167c121ad268fcecc418af0c2992a5d413bd96
ntp-perl-4.2.6p5-2.el6_5.ppc64.rpm SHA-256: 9b275ca3cb232e4a5bc3506d7ace0925e081c6b50ee1a12afc50d9ad03dff106
ntpdate-4.2.6p5-2.el6_5.ppc64.rpm SHA-256: 8ad75d49f84c16f1194eb6d8bf435b22df261de9b083e427d41726822939c080

Red Hat Enterprise Linux Server - TUS 6.5

SRPM
ntp-4.2.6p5-2.el6_5.src.rpm SHA-256: 568a1f455b7bc9f4d9d9f38b37d22282efbfd678c4bb0fe97945b2b00429ac29
x86_64
ntp-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 2f463059196c8f800e06f4501d1265a20d517e5635724591dbd49ab44bacb5a3
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-doc-4.2.6p5-2.el6_5.noarch.rpm SHA-256: 511030ea8b3631ce0d4cef2f13167c121ad268fcecc418af0c2992a5d413bd96
ntp-perl-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: aeca5b1c2e032b1d707cb5dac62a8b6af75e9d26069b1f675814b89b8d350752
ntpdate-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 3587a08c1c4413b7d674a1d142dd54b52769dface7e992061eb0e089c1250ed6

Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.5

SRPM
ntp-4.2.6p5-2.el6_5.src.rpm SHA-256: 568a1f455b7bc9f4d9d9f38b37d22282efbfd678c4bb0fe97945b2b00429ac29
x86_64
ntp-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 2f463059196c8f800e06f4501d1265a20d517e5635724591dbd49ab44bacb5a3
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntpdate-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 3587a08c1c4413b7d674a1d142dd54b52769dface7e992061eb0e089c1250ed6
i386
ntp-4.2.6p5-2.el6_5.i686.rpm SHA-256: 5c18355e61a5e476eb2c3beed5f93fe3ab67fe919f4bfee078037708750fcae3
ntp-debuginfo-4.2.6p5-2.el6_5.i686.rpm SHA-256: 0bddfa04284995c10d9c93ba8fc75461efd8bd581264cba53883e3c794859af9
ntpdate-4.2.6p5-2.el6_5.i686.rpm SHA-256: 56c7e4496840041e898f4c44aaa41be4d6c1a27d67d15837f87d02b6837d0079

Red Hat Enterprise Linux EUS Compute Node 6.5

SRPM
ntp-4.2.6p5-2.el6_5.src.rpm SHA-256: 568a1f455b7bc9f4d9d9f38b37d22282efbfd678c4bb0fe97945b2b00429ac29
x86_64
ntp-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 2f463059196c8f800e06f4501d1265a20d517e5635724591dbd49ab44bacb5a3
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-debuginfo-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: d207ffc5aa10c222271a3e578f63f2617ad96f8d39779630463e4532e4e0c63f
ntp-doc-4.2.6p5-2.el6_5.noarch.rpm SHA-256: 511030ea8b3631ce0d4cef2f13167c121ad268fcecc418af0c2992a5d413bd96
ntp-perl-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: aeca5b1c2e032b1d707cb5dac62a8b6af75e9d26069b1f675814b89b8d350752
ntpdate-4.2.6p5-2.el6_5.x86_64.rpm SHA-256: 3587a08c1c4413b7d674a1d142dd54b52769dface7e992061eb0e089c1250ed6

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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