Issued:
2009-12-08
Updated:
2009-12-08

RHSA-2009:1648 - Security Advisory

Synopsis

Moderate: ntp security update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An updated ntp package that fixes a security issue is now available for Red
Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Description

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

Robin Park and Dmitri Vinokurov discovered a flaw in the way ntpd handled
certain malformed NTP packets. ntpd logged information about all such
packets and replied with an NTP packet that was treated as malformed when
received by another ntpd. A remote attacker could use this flaw to create
an NTP packet reply loop between two ntpd servers via a malformed packet
with a spoofed source IP address and port, causing ntpd on those servers to
use excessive amounts of CPU time and fill disk space with log messages.
(CVE-2009-3563)

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

Solution

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

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

  • Red Hat Enterprise Linux Server 5 x86_64
  • Red Hat Enterprise Linux Server 5 ia64
  • Red Hat Enterprise Linux Server 5 i386
  • Red Hat Enterprise Linux Server 4 x86_64
  • Red Hat Enterprise Linux Server 4 ia64
  • Red Hat Enterprise Linux Server 4 i386
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 ia64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4 i386
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 ia64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 i386
  • Red Hat Enterprise Linux Workstation 5 x86_64
  • Red Hat Enterprise Linux Workstation 5 i386
  • Red Hat Enterprise Linux Workstation 4 x86_64
  • Red Hat Enterprise Linux Workstation 4 ia64
  • Red Hat Enterprise Linux Workstation 4 i386
  • Red Hat Enterprise Linux Desktop 5 x86_64
  • Red Hat Enterprise Linux Desktop 5 i386
  • Red Hat Enterprise Linux Desktop 4 x86_64
  • Red Hat Enterprise Linux Desktop 4 i386
  • Red Hat Enterprise Linux for IBM z Systems 5 s390x
  • Red Hat Enterprise Linux for IBM z Systems 4 s390x
  • Red Hat Enterprise Linux for IBM z Systems 4 s390
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.4 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390
  • Red Hat Enterprise Linux for Power, big endian 5 ppc
  • Red Hat Enterprise Linux for Power, big endian 4 ppc
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.4 ppc
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8 ppc
  • Red Hat Enterprise Linux Server from RHUI 5 x86_64
  • Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

  • BZ - 531213 - CVE-2009-3563 ntpd: DoS with mode 7 packets (VU#568372)

Red Hat Enterprise Linux Server 5

SRPM
ntp-4.2.2p1-9.el5_4.1.src.rpm SHA-256: 1a1f84bbf4e2a1130835f9c55431cc96f032adbc3e2447570270ad7646b50eb6
x86_64
ntp-4.2.2p1-9.el5_4.1.x86_64.rpm SHA-256: cc0038aeee714a9c67fb7fa4298735d43c6938588180358bf54627945554d6f0
ia64
ntp-4.2.2p1-9.el5_4.1.ia64.rpm SHA-256: 20cc75c0a2109556bf935e9aa7cdf6bb8d920280d0c24fc7f8760d456f856a63
i386
ntp-4.2.2p1-9.el5_4.1.i386.rpm SHA-256: 7ef300ecfb1b6b5608b92af9c401cc81475b9319f16ce1f34b828f6c6bb5d465

Red Hat Enterprise Linux Server 4

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
x86_64
ntp-4.2.0.a.20040617-8.el4_8.1.x86_64.rpm SHA-256: a280d013c11dea6b53317167c5550cb42d79047f33ce5940422bc0a81a02912d
ntp-4.2.0.a.20040617-8.el4_8.1.x86_64.rpm SHA-256: a280d013c11dea6b53317167c5550cb42d79047f33ce5940422bc0a81a02912d
ia64
ntp-4.2.0.a.20040617-8.el4_8.1.ia64.rpm SHA-256: 407d61de26aeea48ef8842aee87633cf2de40c8b6f6d586eb6cbb6af25697b86
ntp-4.2.0.a.20040617-8.el4_8.1.ia64.rpm SHA-256: 407d61de26aeea48ef8842aee87633cf2de40c8b6f6d586eb6cbb6af25697b86
i386
ntp-4.2.0.a.20040617-8.el4_8.1.i386.rpm SHA-256: c34e79531f7e4be417bad7f7ed98797fe27b25fe79c204d2decec113b19f5b10
ntp-4.2.0.a.20040617-8.el4_8.1.i386.rpm SHA-256: c34e79531f7e4be417bad7f7ed98797fe27b25fe79c204d2decec113b19f5b10

Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.4

SRPM
x86_64
ia64
i386

Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
x86_64
ntp-4.2.0.a.20040617-8.el4_8.1.x86_64.rpm SHA-256: a280d013c11dea6b53317167c5550cb42d79047f33ce5940422bc0a81a02912d
ntp-4.2.0.a.20040617-8.el4_8.1.x86_64.rpm SHA-256: a280d013c11dea6b53317167c5550cb42d79047f33ce5940422bc0a81a02912d
ia64
ntp-4.2.0.a.20040617-8.el4_8.1.ia64.rpm SHA-256: 407d61de26aeea48ef8842aee87633cf2de40c8b6f6d586eb6cbb6af25697b86
ntp-4.2.0.a.20040617-8.el4_8.1.ia64.rpm SHA-256: 407d61de26aeea48ef8842aee87633cf2de40c8b6f6d586eb6cbb6af25697b86
i386
ntp-4.2.0.a.20040617-8.el4_8.1.i386.rpm SHA-256: c34e79531f7e4be417bad7f7ed98797fe27b25fe79c204d2decec113b19f5b10
ntp-4.2.0.a.20040617-8.el4_8.1.i386.rpm SHA-256: c34e79531f7e4be417bad7f7ed98797fe27b25fe79c204d2decec113b19f5b10

Red Hat Enterprise Linux Workstation 5

SRPM
ntp-4.2.2p1-9.el5_4.1.src.rpm SHA-256: 1a1f84bbf4e2a1130835f9c55431cc96f032adbc3e2447570270ad7646b50eb6
x86_64
ntp-4.2.2p1-9.el5_4.1.x86_64.rpm SHA-256: cc0038aeee714a9c67fb7fa4298735d43c6938588180358bf54627945554d6f0
i386
ntp-4.2.2p1-9.el5_4.1.i386.rpm SHA-256: 7ef300ecfb1b6b5608b92af9c401cc81475b9319f16ce1f34b828f6c6bb5d465

Red Hat Enterprise Linux Workstation 4

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
x86_64
ntp-4.2.0.a.20040617-8.el4_8.1.x86_64.rpm SHA-256: a280d013c11dea6b53317167c5550cb42d79047f33ce5940422bc0a81a02912d
ia64
ntp-4.2.0.a.20040617-8.el4_8.1.ia64.rpm SHA-256: 407d61de26aeea48ef8842aee87633cf2de40c8b6f6d586eb6cbb6af25697b86
i386
ntp-4.2.0.a.20040617-8.el4_8.1.i386.rpm SHA-256: c34e79531f7e4be417bad7f7ed98797fe27b25fe79c204d2decec113b19f5b10

Red Hat Enterprise Linux Desktop 5

SRPM
ntp-4.2.2p1-9.el5_4.1.src.rpm SHA-256: 1a1f84bbf4e2a1130835f9c55431cc96f032adbc3e2447570270ad7646b50eb6
x86_64
ntp-4.2.2p1-9.el5_4.1.x86_64.rpm SHA-256: cc0038aeee714a9c67fb7fa4298735d43c6938588180358bf54627945554d6f0
i386
ntp-4.2.2p1-9.el5_4.1.i386.rpm SHA-256: 7ef300ecfb1b6b5608b92af9c401cc81475b9319f16ce1f34b828f6c6bb5d465

Red Hat Enterprise Linux Desktop 4

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
x86_64
ntp-4.2.0.a.20040617-8.el4_8.1.x86_64.rpm SHA-256: a280d013c11dea6b53317167c5550cb42d79047f33ce5940422bc0a81a02912d
i386
ntp-4.2.0.a.20040617-8.el4_8.1.i386.rpm SHA-256: c34e79531f7e4be417bad7f7ed98797fe27b25fe79c204d2decec113b19f5b10

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
ntp-4.2.2p1-9.el5_4.1.src.rpm SHA-256: 1a1f84bbf4e2a1130835f9c55431cc96f032adbc3e2447570270ad7646b50eb6
s390x
ntp-4.2.2p1-9.el5_4.1.s390x.rpm SHA-256: 430a424a0aab5082515ec5659795f11354d83eae4a4aa5c13138cd43f11d81b2

Red Hat Enterprise Linux for IBM z Systems 4

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
s390x
ntp-4.2.0.a.20040617-8.el4_8.1.s390x.rpm SHA-256: f63a9272021b980dc3c2199a8457b77b1c5190f6e7311ac26dc848b17ae6310b
s390
ntp-4.2.0.a.20040617-8.el4_8.1.s390.rpm SHA-256: 97c47f5e9c10afe54ffb92eca59908f39e09b06a6fd325dd140ff02bf14939bd

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.4

SRPM
s390x

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
s390x
ntp-4.2.0.a.20040617-8.el4_8.1.s390x.rpm SHA-256: f63a9272021b980dc3c2199a8457b77b1c5190f6e7311ac26dc848b17ae6310b
s390
ntp-4.2.0.a.20040617-8.el4_8.1.s390.rpm SHA-256: 97c47f5e9c10afe54ffb92eca59908f39e09b06a6fd325dd140ff02bf14939bd

Red Hat Enterprise Linux for Power, big endian 5

SRPM
ntp-4.2.2p1-9.el5_4.1.src.rpm SHA-256: 1a1f84bbf4e2a1130835f9c55431cc96f032adbc3e2447570270ad7646b50eb6
ppc
ntp-4.2.2p1-9.el5_4.1.ppc.rpm SHA-256: 908eed2c02e6daad58e8a89c6f93ed508c3d3d0cb2d7a7d8096d33206b164c38

Red Hat Enterprise Linux for Power, big endian 4

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
ppc
ntp-4.2.0.a.20040617-8.el4_8.1.ppc.rpm SHA-256: 29236dff142a5e6db2971d36fc9f280fba776bf09d1a61c63859546ea2985712

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.4

SRPM
ppc

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8

SRPM
ntp-4.2.0.a.20040617-8.el4_8.1.src.rpm SHA-256: f062f93e70dde43e9afb2c13a355ab30be4945b98d8273b663eb282e0bce9088
ppc
ntp-4.2.0.a.20040617-8.el4_8.1.ppc.rpm SHA-256: 29236dff142a5e6db2971d36fc9f280fba776bf09d1a61c63859546ea2985712

Red Hat Enterprise Linux Server from RHUI 5

SRPM
ntp-4.2.2p1-9.el5_4.1.src.rpm SHA-256: 1a1f84bbf4e2a1130835f9c55431cc96f032adbc3e2447570270ad7646b50eb6
x86_64
ntp-4.2.2p1-9.el5_4.1.x86_64.rpm SHA-256: cc0038aeee714a9c67fb7fa4298735d43c6938588180358bf54627945554d6f0
i386
ntp-4.2.2p1-9.el5_4.1.i386.rpm SHA-256: 7ef300ecfb1b6b5608b92af9c401cc81475b9319f16ce1f34b828f6c6bb5d465

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