- Issued:
- 2012-08-03
- Updated:
- 2012-08-03
RHSA-2012:1140 - Security Advisory
Synopsis
Moderate: dhcp security update
Type/Severity
Security Advisory: Moderate
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
Topic
Updated dhcp packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
Description
The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows
individual devices on an IP network to get their own network configuration
information, including an IP address, a subnet mask, and a broadcast
address.
A denial of service flaw was found in the way the dhcpd daemon handled
zero-length client identifiers. A remote attacker could use this flaw to
send a specially-crafted request to dhcpd, possibly causing it to enter an
infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571)
Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as
the original reporter of this issue.
Users of DHCP should upgrade to these updated packages, which contain a
backported patch to correct this issue. After installing this update, all
DHCP servers will be restarted 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/knowledge/articles/11258
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 Workstation 5 x86_64
- Red Hat Enterprise Linux Workstation 5 i386
- Red Hat Enterprise Linux Desktop 5 x86_64
- Red Hat Enterprise Linux Desktop 5 i386
- Red Hat Enterprise Linux for IBM z Systems 5 s390x
- Red Hat Enterprise Linux for Power, big endian 5 ppc
- Red Hat Enterprise Linux Server from RHUI 5 x86_64
- Red Hat Enterprise Linux Server from RHUI 5 i386
Fixes
- BZ - 842420 - CVE-2012-3571 dhcp: DoS due to error in handling malformed client identifiers
CVEs
Note:
More recent versions of these packages may be available.
Click a package name for more details.
Red Hat Enterprise Linux Server 5
| SRPM | |
|---|---|
| dhcp-3.0.5-31.el5_8.1.src.rpm | SHA-256: ec2598dbd44008207a59d872495a4c3c10b61c91afab531fafa90b09d1e0720d |
| x86_64 | |
| dhclient-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: eca8beb1500d0a3100a452f73eb9c9e5bdfbabb6cd1fd00fc83d1e59893346c9 |
| dhcp-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 58236f613ff18ff0c194cda4d4085b3a42f1ef4ef83783a83730002a504186cc |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 70f21bd8e439d9f65ee5d8552be4b3ae77cf1ca5b41e652bdbaf6527c8c3fc5d |
| dhcp-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 6e0230823326696271387d15c857b48448bdecb97af85e2a226483a851bce17e |
| dhcp-devel-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: ca556de4ccaf8ea2c48d625ae670f51c50508b077b0714180ff0e868b1376a8d |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
| libdhcp4client-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 4ac9502fe11987b423e7e03d96b594d9310268ff779dd76a864281f5da14e629 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7a6fc552f4499a1826b4b93efc9fcdd7471102bacaa176c4d8a81dd52a380d3e |
| libdhcp4client-devel-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 5039740c1e2f24af75cf554e456ffdc263f1c6ada33dc79f9379db50a90fb24d |
| ia64 | |
| dhclient-3.0.5-31.el5_8.1.ia64.rpm | SHA-256: de0245266980f09a078982ec2a0514721e9d841c77c7252241752cfe75dcb203 |
| dhcp-3.0.5-31.el5_8.1.ia64.rpm | SHA-256: a2d4cc3326b0867a87877685199e3770fa1c17f395958603017f25fd4f6ae6d8 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.ia64.rpm | SHA-256: 5783441774ef04306eb4b1043e90358ac04c85d8b078d7b0651ff4bf1fda98f0 |
| dhcp-devel-3.0.5-31.el5_8.1.ia64.rpm | SHA-256: baba1b84ced7a56797970791b412f3e8bfaba781fbcf97193a08bd82e6133187 |
| libdhcp4client-3.0.5-31.el5_8.1.ia64.rpm | SHA-256: 4f6ad2f71aa50b1349d661c5859e49f2593ea64b002d120b2ffb91c5d41c4c8b |
| libdhcp4client-devel-3.0.5-31.el5_8.1.ia64.rpm | SHA-256: 82640d26fe14050893922e6e591a8d05cb15becc554e26423ad747d2dc41eb86 |
| i386 | |
| dhclient-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 31d1f2af6df3279b62a8df30c2a30bfff2c4349b2f6b74b29be777f1102bb6e8 |
| dhcp-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 2e989cfcebac3b73ff7d9443495caf7534d1084feaa3dabf86062d9ab2980df4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 6e0230823326696271387d15c857b48448bdecb97af85e2a226483a851bce17e |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7a6fc552f4499a1826b4b93efc9fcdd7471102bacaa176c4d8a81dd52a380d3e |
Red Hat Enterprise Linux Workstation 5
| SRPM | |
|---|---|
| dhcp-3.0.5-31.el5_8.1.src.rpm | SHA-256: ec2598dbd44008207a59d872495a4c3c10b61c91afab531fafa90b09d1e0720d |
| x86_64 | |
| dhclient-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: eca8beb1500d0a3100a452f73eb9c9e5bdfbabb6cd1fd00fc83d1e59893346c9 |
| dhcp-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 58236f613ff18ff0c194cda4d4085b3a42f1ef4ef83783a83730002a504186cc |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 70f21bd8e439d9f65ee5d8552be4b3ae77cf1ca5b41e652bdbaf6527c8c3fc5d |
| dhcp-debuginfo-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 70f21bd8e439d9f65ee5d8552be4b3ae77cf1ca5b41e652bdbaf6527c8c3fc5d |
| dhcp-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 6e0230823326696271387d15c857b48448bdecb97af85e2a226483a851bce17e |
| dhcp-devel-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: ca556de4ccaf8ea2c48d625ae670f51c50508b077b0714180ff0e868b1376a8d |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
| libdhcp4client-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 4ac9502fe11987b423e7e03d96b594d9310268ff779dd76a864281f5da14e629 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7a6fc552f4499a1826b4b93efc9fcdd7471102bacaa176c4d8a81dd52a380d3e |
| libdhcp4client-devel-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 5039740c1e2f24af75cf554e456ffdc263f1c6ada33dc79f9379db50a90fb24d |
| i386 | |
| dhclient-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 31d1f2af6df3279b62a8df30c2a30bfff2c4349b2f6b74b29be777f1102bb6e8 |
| dhcp-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 2e989cfcebac3b73ff7d9443495caf7534d1084feaa3dabf86062d9ab2980df4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 6e0230823326696271387d15c857b48448bdecb97af85e2a226483a851bce17e |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7a6fc552f4499a1826b4b93efc9fcdd7471102bacaa176c4d8a81dd52a380d3e |
Red Hat Enterprise Linux Desktop 5
| SRPM | |
|---|---|
| dhcp-3.0.5-31.el5_8.1.src.rpm | SHA-256: ec2598dbd44008207a59d872495a4c3c10b61c91afab531fafa90b09d1e0720d |
| x86_64 | |
| dhclient-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: eca8beb1500d0a3100a452f73eb9c9e5bdfbabb6cd1fd00fc83d1e59893346c9 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 70f21bd8e439d9f65ee5d8552be4b3ae77cf1ca5b41e652bdbaf6527c8c3fc5d |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
| libdhcp4client-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 4ac9502fe11987b423e7e03d96b594d9310268ff779dd76a864281f5da14e629 |
| i386 | |
| dhclient-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 31d1f2af6df3279b62a8df30c2a30bfff2c4349b2f6b74b29be777f1102bb6e8 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
Red Hat Enterprise Linux for IBM z Systems 5
| SRPM | |
|---|---|
| dhcp-3.0.5-31.el5_8.1.src.rpm | SHA-256: ec2598dbd44008207a59d872495a4c3c10b61c91afab531fafa90b09d1e0720d |
| s390x | |
| dhclient-3.0.5-31.el5_8.1.s390x.rpm | SHA-256: e6472b006cb4f989ddef6a9c82704c7514b65dc1980ff540aa1a2d4521de0878 |
| dhcp-3.0.5-31.el5_8.1.s390x.rpm | SHA-256: 06e25667909ece648da22b0d889c776d83fa33af169499c947572009208fb97b |
| dhcp-debuginfo-3.0.5-31.el5_8.1.s390.rpm | SHA-256: 61f1c7cd0316a54d7b50e9048329f85b9e42e498a0a68322a1e73e31f8b4b2cb |
| dhcp-debuginfo-3.0.5-31.el5_8.1.s390x.rpm | SHA-256: 0312a68998cf1f468a6577faba19a91581decba8c89f88cc5015274e92eb94cf |
| dhcp-devel-3.0.5-31.el5_8.1.s390.rpm | SHA-256: 5d71cc60674e6cbbd954f5cbf66bad98ca176d31461f4e74ac89558e3b4e573e |
| dhcp-devel-3.0.5-31.el5_8.1.s390x.rpm | SHA-256: c0cddcadbce51aacdb86d605b171ec43afdf6a50c9bea1ab52740771317523ff |
| libdhcp4client-3.0.5-31.el5_8.1.s390.rpm | SHA-256: 285f02e6568502792dfec6b97962f60ea0b90605d3e60d4f8feb34bf4db2e37d |
| libdhcp4client-3.0.5-31.el5_8.1.s390x.rpm | SHA-256: 049408b0c6adf205ad2b3174cf1f4c6e828b3e72986c53fde89972fc9ddcd3e9 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.s390.rpm | SHA-256: 0a971376a2ced29b74919913126d772b1925b8d810addfb81b96e3475a76b4de |
| libdhcp4client-devel-3.0.5-31.el5_8.1.s390x.rpm | SHA-256: d27b1b50a83c3afb1ff510c7d07cb87cbb59b5970df674e6bac38e41f2a3afe6 |
Red Hat Enterprise Linux for Power, big endian 5
| SRPM | |
|---|---|
| dhcp-3.0.5-31.el5_8.1.src.rpm | SHA-256: ec2598dbd44008207a59d872495a4c3c10b61c91afab531fafa90b09d1e0720d |
| ppc | |
| dhclient-3.0.5-31.el5_8.1.ppc.rpm | SHA-256: 0c7e3d0802fbacee84e37c56198fc049f82756df5a8e4c76f5afcf5bdcb176cc |
| dhcp-3.0.5-31.el5_8.1.ppc.rpm | SHA-256: 7f73767fd272bd129aadd8be03428757edcb0359042fc605dc4e919c53689354 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.ppc.rpm | SHA-256: fd7be3fbd749c61767fcc6211fc5cc12a50f1be9dc1daa7c44d40affcf86f492 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.ppc64.rpm | SHA-256: 370a10d95d0b2627f1139c747b7570230e766c76fe00d4e62031905089396757 |
| dhcp-devel-3.0.5-31.el5_8.1.ppc.rpm | SHA-256: 6e32d11e5fe1981eec979dce96663add680f998fc2e6dfa69389e5361354ae9d |
| dhcp-devel-3.0.5-31.el5_8.1.ppc64.rpm | SHA-256: 4b213dcffbb6c0e1cc0bbff44b92760f45e718338266eaa2a6e07e6df31744e9 |
| libdhcp4client-3.0.5-31.el5_8.1.ppc.rpm | SHA-256: dc9bb51f64ca0650d6bdee41c74b3cbd4ff4e5aef65395f9e7b72b117eec8898 |
| libdhcp4client-3.0.5-31.el5_8.1.ppc64.rpm | SHA-256: b780ca6ad30c3b9c421b61cc09245f9bd717051c7c2cf13fc390ac0ceb965f11 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.ppc.rpm | SHA-256: c3f7a765600098099981aa7715bf80305e233ca943f89df0a308061ceedfbcba |
| libdhcp4client-devel-3.0.5-31.el5_8.1.ppc64.rpm | SHA-256: 748918489edeea76626359dc7e783edd0132cc46d2674ad964eb00868164be54 |
Red Hat Enterprise Linux Server from RHUI 5
| SRPM | |
|---|---|
| dhcp-3.0.5-31.el5_8.1.src.rpm | SHA-256: ec2598dbd44008207a59d872495a4c3c10b61c91afab531fafa90b09d1e0720d |
| x86_64 | |
| dhclient-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: eca8beb1500d0a3100a452f73eb9c9e5bdfbabb6cd1fd00fc83d1e59893346c9 |
| dhcp-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 58236f613ff18ff0c194cda4d4085b3a42f1ef4ef83783a83730002a504186cc |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 70f21bd8e439d9f65ee5d8552be4b3ae77cf1ca5b41e652bdbaf6527c8c3fc5d |
| dhcp-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 6e0230823326696271387d15c857b48448bdecb97af85e2a226483a851bce17e |
| dhcp-devel-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: ca556de4ccaf8ea2c48d625ae670f51c50508b077b0714180ff0e868b1376a8d |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
| libdhcp4client-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 4ac9502fe11987b423e7e03d96b594d9310268ff779dd76a864281f5da14e629 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7a6fc552f4499a1826b4b93efc9fcdd7471102bacaa176c4d8a81dd52a380d3e |
| libdhcp4client-devel-3.0.5-31.el5_8.1.x86_64.rpm | SHA-256: 5039740c1e2f24af75cf554e456ffdc263f1c6ada33dc79f9379db50a90fb24d |
| i386 | |
| dhclient-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 31d1f2af6df3279b62a8df30c2a30bfff2c4349b2f6b74b29be777f1102bb6e8 |
| dhcp-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 2e989cfcebac3b73ff7d9443495caf7534d1084feaa3dabf86062d9ab2980df4 |
| dhcp-debuginfo-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 11df4349866bf1b81b758eacaac0cea1eea5f78fa276c8ae1477a8d455ccbef4 |
| dhcp-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 6e0230823326696271387d15c857b48448bdecb97af85e2a226483a851bce17e |
| libdhcp4client-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7030c0687300fb792d93b4b5cbe232d5d79b0abc7f5113fe332b3d232da937e3 |
| libdhcp4client-devel-3.0.5-31.el5_8.1.i386.rpm | SHA-256: 7a6fc552f4499a1826b4b93efc9fcdd7471102bacaa176c4d8a81dd52a380d3e |
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