-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: dhcp security update Advisory ID: RHSA-2011:1160-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1160.html Issue date: 2011-08-15 CVE Names: CVE-2011-2748 CVE-2011-2749 ===================================================================== 1. Summary: Updated dhcp packages that fix two security issues are now available for Red Hat Enterprise Linux 4, 5, and 6. The Red Hat Security Response Team has rated this update as having moderate 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. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. 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. Two denial of service flaws were found in the way the dhcpd daemon handled certain incomplete request packets. A remote attacker could use these flaws to crash dhcpd via a specially-crafted request. (CVE-2011-2748, CVE-2011-2749) Users of DHCP should upgrade to these updated packages, which contain a backported patch to correct these issues. After installing this update, all DHCP servers will be restarted automatically. 4. 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/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 729382 - CVE-2011-2748 CVE-2011-2749 dhcp: denial of service flaws 6. Package List: Red Hat Enterprise Linux AS version 4: Source: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/dhcp-3.0.1-68.el4.src.rpm i386: dhclient-3.0.1-68.el4.i386.rpm dhcp-3.0.1-68.el4.i386.rpm dhcp-debuginfo-3.0.1-68.el4.i386.rpm dhcp-devel-3.0.1-68.el4.i386.rpm ia64: dhclient-3.0.1-68.el4.ia64.rpm dhcp-3.0.1-68.el4.ia64.rpm dhcp-debuginfo-3.0.1-68.el4.ia64.rpm dhcp-devel-3.0.1-68.el4.ia64.rpm ppc: dhclient-3.0.1-68.el4.ppc.rpm dhcp-3.0.1-68.el4.ppc.rpm dhcp-debuginfo-3.0.1-68.el4.ppc.rpm dhcp-devel-3.0.1-68.el4.ppc.rpm s390: dhclient-3.0.1-68.el4.s390.rpm dhcp-3.0.1-68.el4.s390.rpm dhcp-debuginfo-3.0.1-68.el4.s390.rpm dhcp-devel-3.0.1-68.el4.s390.rpm s390x: dhclient-3.0.1-68.el4.s390x.rpm dhcp-3.0.1-68.el4.s390x.rpm dhcp-debuginfo-3.0.1-68.el4.s390x.rpm dhcp-devel-3.0.1-68.el4.s390x.rpm x86_64: dhclient-3.0.1-68.el4.x86_64.rpm dhcp-3.0.1-68.el4.x86_64.rpm dhcp-debuginfo-3.0.1-68.el4.x86_64.rpm dhcp-devel-3.0.1-68.el4.x86_64.rpm Red Hat Enterprise Linux Desktop version 4: Source: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/dhcp-3.0.1-68.el4.src.rpm i386: dhclient-3.0.1-68.el4.i386.rpm dhcp-3.0.1-68.el4.i386.rpm dhcp-debuginfo-3.0.1-68.el4.i386.rpm dhcp-devel-3.0.1-68.el4.i386.rpm x86_64: dhclient-3.0.1-68.el4.x86_64.rpm dhcp-3.0.1-68.el4.x86_64.rpm dhcp-debuginfo-3.0.1-68.el4.x86_64.rpm dhcp-devel-3.0.1-68.el4.x86_64.rpm Red Hat Enterprise Linux ES version 4: Source: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/dhcp-3.0.1-68.el4.src.rpm i386: dhclient-3.0.1-68.el4.i386.rpm dhcp-3.0.1-68.el4.i386.rpm dhcp-debuginfo-3.0.1-68.el4.i386.rpm dhcp-devel-3.0.1-68.el4.i386.rpm ia64: dhclient-3.0.1-68.el4.ia64.rpm dhcp-3.0.1-68.el4.ia64.rpm dhcp-debuginfo-3.0.1-68.el4.ia64.rpm dhcp-devel-3.0.1-68.el4.ia64.rpm x86_64: dhclient-3.0.1-68.el4.x86_64.rpm dhcp-3.0.1-68.el4.x86_64.rpm dhcp-debuginfo-3.0.1-68.el4.x86_64.rpm dhcp-devel-3.0.1-68.el4.x86_64.rpm Red Hat Enterprise Linux WS version 4: Source: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/dhcp-3.0.1-68.el4.src.rpm i386: dhclient-3.0.1-68.el4.i386.rpm dhcp-3.0.1-68.el4.i386.rpm dhcp-debuginfo-3.0.1-68.el4.i386.rpm dhcp-devel-3.0.1-68.el4.i386.rpm ia64: dhclient-3.0.1-68.el4.ia64.rpm dhcp-3.0.1-68.el4.ia64.rpm dhcp-debuginfo-3.0.1-68.el4.ia64.rpm dhcp-devel-3.0.1-68.el4.ia64.rpm x86_64: dhclient-3.0.1-68.el4.x86_64.rpm dhcp-3.0.1-68.el4.x86_64.rpm dhcp-debuginfo-3.0.1-68.el4.x86_64.rpm dhcp-devel-3.0.1-68.el4.x86_64.rpm Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/dhcp-3.0.5-29.el5_7.1.src.rpm i386: dhclient-3.0.5-29.el5_7.1.i386.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-3.0.5-29.el5_7.1.i386.rpm x86_64: dhclient-3.0.5-29.el5_7.1.x86_64.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.i386.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.x86_64.rpm libdhcp4client-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-3.0.5-29.el5_7.1.x86_64.rpm RHEL Desktop Workstation (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/dhcp-3.0.5-29.el5_7.1.src.rpm i386: dhcp-3.0.5-29.el5_7.1.i386.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.i386.rpm dhcp-devel-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.i386.rpm x86_64: dhcp-3.0.5-29.el5_7.1.x86_64.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.i386.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.x86_64.rpm dhcp-devel-3.0.5-29.el5_7.1.i386.rpm dhcp-devel-3.0.5-29.el5_7.1.x86_64.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/dhcp-3.0.5-29.el5_7.1.src.rpm i386: dhclient-3.0.5-29.el5_7.1.i386.rpm dhcp-3.0.5-29.el5_7.1.i386.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.i386.rpm dhcp-devel-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.i386.rpm ia64: dhclient-3.0.5-29.el5_7.1.ia64.rpm dhcp-3.0.5-29.el5_7.1.ia64.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.ia64.rpm dhcp-devel-3.0.5-29.el5_7.1.ia64.rpm libdhcp4client-3.0.5-29.el5_7.1.ia64.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.ia64.rpm ppc: dhclient-3.0.5-29.el5_7.1.ppc.rpm dhcp-3.0.5-29.el5_7.1.ppc.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.ppc.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.ppc64.rpm dhcp-devel-3.0.5-29.el5_7.1.ppc.rpm dhcp-devel-3.0.5-29.el5_7.1.ppc64.rpm libdhcp4client-3.0.5-29.el5_7.1.ppc.rpm libdhcp4client-3.0.5-29.el5_7.1.ppc64.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.ppc.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.ppc64.rpm s390x: dhclient-3.0.5-29.el5_7.1.s390x.rpm dhcp-3.0.5-29.el5_7.1.s390x.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.s390.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.s390x.rpm dhcp-devel-3.0.5-29.el5_7.1.s390.rpm dhcp-devel-3.0.5-29.el5_7.1.s390x.rpm libdhcp4client-3.0.5-29.el5_7.1.s390.rpm libdhcp4client-3.0.5-29.el5_7.1.s390x.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.s390.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.s390x.rpm x86_64: dhclient-3.0.5-29.el5_7.1.x86_64.rpm dhcp-3.0.5-29.el5_7.1.x86_64.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.i386.rpm dhcp-debuginfo-3.0.5-29.el5_7.1.x86_64.rpm dhcp-devel-3.0.5-29.el5_7.1.i386.rpm dhcp-devel-3.0.5-29.el5_7.1.x86_64.rpm libdhcp4client-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-3.0.5-29.el5_7.1.x86_64.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.i386.rpm libdhcp4client-devel-3.0.5-29.el5_7.1.x86_64.rpm Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm i386: dhclient-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm x86_64: dhclient-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm i386: dhcp-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.i686.rpm x86_64: dhcp-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm x86_64: dhclient-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm x86_64: dhcp-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm i386: dhclient-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm ppc64: dhclient-4.1.1-19.P1.el6_1.1.ppc64.rpm dhcp-4.1.1-19.P1.el6_1.1.ppc64.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.ppc64.rpm s390x: dhclient-4.1.1-19.P1.el6_1.1.s390x.rpm dhcp-4.1.1-19.P1.el6_1.1.s390x.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.s390x.rpm x86_64: dhclient-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm i386: dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.i686.rpm ppc64: dhcp-debuginfo-4.1.1-19.P1.el6_1.1.ppc.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.ppc64.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.ppc.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.ppc64.rpm s390x: dhcp-debuginfo-4.1.1-19.P1.el6_1.1.s390.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.s390x.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.s390.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.s390x.rpm x86_64: dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm i386: dhclient-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm x86_64: dhclient-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/dhcp-4.1.1-19.P1.el6_1.1.src.rpm i386: dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.i686.rpm x86_64: dhcp-debuginfo-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-debuginfo-4.1.1-19.P1.el6_1.1.x86_64.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.i686.rpm dhcp-devel-4.1.1-19.P1.el6_1.1.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/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-2748.html https://www.redhat.com/security/data/cve/CVE-2011-2749.html https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2011 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFOSV0wXlSAg2UNWIIRAh63AJ9s9NqaItBmC/FujkwiWJCqyUExtQCfdnFn kZDPqMc+tbUwukORS8TKw6U= =+x56 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce