-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Critical: dhcp security update Advisory ID: RHSA-2018:1453-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:1453 Issue date: 2018-05-15 CVE Names: CVE-2018-1111 ===================================================================== 1. Summary: An update for dhcp is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x 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. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network. Security Fix(es): * A command injection flaw was found in the NetworkManager integration script included in the DHCP client packages in Red Hat Enterprise Linux. A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol. (CVE-2018-1111) Red Hat would like to thank Felix Wilhelm (Google Security Team) for reporting this issue. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1567974 - CVE-2018-1111 dhcp: Command injection vulnerability in the DHCP client NetworkManager integration script 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: dhcp-4.2.5-68.el7_5.1.src.rpm x86_64: dhclient-4.2.5-68.el7_5.1.x86_64.rpm dhcp-common-4.2.5-68.el7_5.1.x86_64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-libs-4.2.5-68.el7_5.1.i686.rpm dhcp-libs-4.2.5-68.el7_5.1.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: dhcp-4.2.5-68.el7_5.1.x86_64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-devel-4.2.5-68.el7_5.1.i686.rpm dhcp-devel-4.2.5-68.el7_5.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: dhcp-4.2.5-68.el7_5.1.src.rpm x86_64: dhclient-4.2.5-68.el7_5.1.x86_64.rpm dhcp-common-4.2.5-68.el7_5.1.x86_64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-libs-4.2.5-68.el7_5.1.i686.rpm dhcp-libs-4.2.5-68.el7_5.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: dhcp-4.2.5-68.el7_5.1.x86_64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-devel-4.2.5-68.el7_5.1.i686.rpm dhcp-devel-4.2.5-68.el7_5.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: dhcp-4.2.5-68.el7_5.1.src.rpm ppc64: dhclient-4.2.5-68.el7_5.1.ppc64.rpm dhcp-4.2.5-68.el7_5.1.ppc64.rpm dhcp-common-4.2.5-68.el7_5.1.ppc64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.ppc.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.ppc64.rpm dhcp-libs-4.2.5-68.el7_5.1.ppc.rpm dhcp-libs-4.2.5-68.el7_5.1.ppc64.rpm ppc64le: dhclient-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-common-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-libs-4.2.5-68.el7_5.1.ppc64le.rpm s390x: dhclient-4.2.5-68.el7_5.1.s390x.rpm dhcp-4.2.5-68.el7_5.1.s390x.rpm dhcp-common-4.2.5-68.el7_5.1.s390x.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.s390.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.s390x.rpm dhcp-libs-4.2.5-68.el7_5.1.s390.rpm dhcp-libs-4.2.5-68.el7_5.1.s390x.rpm x86_64: dhclient-4.2.5-68.el7_5.1.x86_64.rpm dhcp-4.2.5-68.el7_5.1.x86_64.rpm dhcp-common-4.2.5-68.el7_5.1.x86_64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-libs-4.2.5-68.el7_5.1.i686.rpm dhcp-libs-4.2.5-68.el7_5.1.x86_64.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7): Source: dhcp-4.2.5-68.el7_5.1.src.rpm aarch64: dhclient-4.2.5-68.el7_5.1.aarch64.rpm dhcp-4.2.5-68.el7_5.1.aarch64.rpm dhcp-common-4.2.5-68.el7_5.1.aarch64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.aarch64.rpm dhcp-libs-4.2.5-68.el7_5.1.aarch64.rpm ppc64le: dhclient-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-common-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-libs-4.2.5-68.el7_5.1.ppc64le.rpm s390x: dhclient-4.2.5-68.el7_5.1.s390x.rpm dhcp-4.2.5-68.el7_5.1.s390x.rpm dhcp-common-4.2.5-68.el7_5.1.s390x.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.s390.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.s390x.rpm dhcp-libs-4.2.5-68.el7_5.1.s390.rpm dhcp-libs-4.2.5-68.el7_5.1.s390x.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: dhcp-debuginfo-4.2.5-68.el7_5.1.ppc.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.ppc64.rpm dhcp-devel-4.2.5-68.el7_5.1.ppc.rpm dhcp-devel-4.2.5-68.el7_5.1.ppc64.rpm ppc64le: dhcp-debuginfo-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-devel-4.2.5-68.el7_5.1.ppc64le.rpm s390x: dhcp-debuginfo-4.2.5-68.el7_5.1.s390.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.s390x.rpm dhcp-devel-4.2.5-68.el7_5.1.s390.rpm dhcp-devel-4.2.5-68.el7_5.1.s390x.rpm x86_64: dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-devel-4.2.5-68.el7_5.1.i686.rpm dhcp-devel-4.2.5-68.el7_5.1.x86_64.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7): aarch64: dhcp-debuginfo-4.2.5-68.el7_5.1.aarch64.rpm dhcp-devel-4.2.5-68.el7_5.1.aarch64.rpm ppc64le: dhcp-debuginfo-4.2.5-68.el7_5.1.ppc64le.rpm dhcp-devel-4.2.5-68.el7_5.1.ppc64le.rpm s390x: dhcp-debuginfo-4.2.5-68.el7_5.1.s390.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.s390x.rpm dhcp-devel-4.2.5-68.el7_5.1.s390.rpm dhcp-devel-4.2.5-68.el7_5.1.s390x.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: dhcp-4.2.5-68.el7_5.1.src.rpm x86_64: dhclient-4.2.5-68.el7_5.1.x86_64.rpm dhcp-4.2.5-68.el7_5.1.x86_64.rpm dhcp-common-4.2.5-68.el7_5.1.x86_64.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-libs-4.2.5-68.el7_5.1.i686.rpm dhcp-libs-4.2.5-68.el7_5.1.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: dhcp-debuginfo-4.2.5-68.el7_5.1.i686.rpm dhcp-debuginfo-4.2.5-68.el7_5.1.x86_64.rpm dhcp-devel-4.2.5-68.el7_5.1.i686.rpm dhcp-devel-4.2.5-68.el7_5.1.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/ 7. References: https://access.redhat.com/security/cve/CVE-2018-1111 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/3442151 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIUAwUBWvsEBtzjgjWX9erEAQi31A/427zadT/VscmjjbmNYddiFvQkL1L22csF xH/ayNsnZzNUaNeIuVO1qfnGG1AySgCdZlbB9Zver181qd9YuCvrjq+RseSWHLRA pWCrJPVHx2S309B++I5EkueF/LUNseZNYHumkaoqOLoB9nLt6BnI25sZer2bPZN9 H1lWHC0x/EDfr3/TS40h5O/qs7/Go48E6wQbCMQDEHtHlWHATCXmKVRMKLaqf5lX p+r7Bet0sA3YP7iiWLKiMGHoQv9CX7SpfkHX1ahww3atg0ZmH/xpNzB4w/0x1Zky XQ65msPxj9lbgwm2P4axSlJUwdNw1q8u8tMICVhxAjpV764tV8Ev06wdUlx0hG4d VjZdAvHw7RIVF+1W1b6DHJR/8T8OqrNluwJ79rE3nntDNel3bd8PmfzNd1Wtb2gw DrxOTqa621uzmhjZzR4oLQCcqJp0vvTSmQAJMnuLoC28iLjhq0NKG9hyAVNAsUty 3zIF+IlJvXZ0Mr4cwfZdvR0IsN1q44j/2tqes8hm3yfNbqL5MMqX4UUI0a2doFwk NPV6DZYXn+KXl5Aml/Z0jHPpVGyA674Qs88tfC3wSaWJf5g7mkVQAF5q8xjgcB7T 3Z78EckdkXeJxakYLQez0UHW4xRTnOeVjUVOf3Cue3t02wfKeu78GdrK4xQhsl13 y5LW4AYWIQ== =ODBZ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce