-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Critical: dhcp security update Advisory ID: RHSA-2018:1455-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:1455 Issue date: 2018-05-15 CVE Names: CVE-2018-1111 ===================================================================== 1. Summary: An update for dhcp is now available for Red Hat Enterprise Linux 7.4 Extended Update Support. 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 ComputeNode EUS (v. 7.4) - x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.4) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - ppc64, ppc64le, s390x, 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. 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 ComputeNode EUS (v. 7.4): Source: dhcp-4.2.5-58.el7_4.4.src.rpm x86_64: dhclient-4.2.5-58.el7_4.4.x86_64.rpm dhcp-common-4.2.5-58.el7_4.4.x86_64.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.i686.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.x86_64.rpm dhcp-libs-4.2.5-58.el7_4.4.i686.rpm dhcp-libs-4.2.5-58.el7_4.4.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4): x86_64: dhcp-4.2.5-58.el7_4.4.x86_64.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.i686.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.x86_64.rpm dhcp-devel-4.2.5-58.el7_4.4.i686.rpm dhcp-devel-4.2.5-58.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.4): Source: dhcp-4.2.5-58.el7_4.4.src.rpm ppc64: dhclient-4.2.5-58.el7_4.4.ppc64.rpm dhcp-4.2.5-58.el7_4.4.ppc64.rpm dhcp-common-4.2.5-58.el7_4.4.ppc64.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.ppc.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.ppc64.rpm dhcp-libs-4.2.5-58.el7_4.4.ppc.rpm dhcp-libs-4.2.5-58.el7_4.4.ppc64.rpm ppc64le: dhclient-4.2.5-58.el7_4.4.ppc64le.rpm dhcp-4.2.5-58.el7_4.4.ppc64le.rpm dhcp-common-4.2.5-58.el7_4.4.ppc64le.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.ppc64le.rpm dhcp-libs-4.2.5-58.el7_4.4.ppc64le.rpm s390x: dhclient-4.2.5-58.el7_4.4.s390x.rpm dhcp-4.2.5-58.el7_4.4.s390x.rpm dhcp-common-4.2.5-58.el7_4.4.s390x.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.s390.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.s390x.rpm dhcp-libs-4.2.5-58.el7_4.4.s390.rpm dhcp-libs-4.2.5-58.el7_4.4.s390x.rpm x86_64: dhclient-4.2.5-58.el7_4.4.x86_64.rpm dhcp-4.2.5-58.el7_4.4.x86_64.rpm dhcp-common-4.2.5-58.el7_4.4.x86_64.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.i686.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.x86_64.rpm dhcp-libs-4.2.5-58.el7_4.4.i686.rpm dhcp-libs-4.2.5-58.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.4): ppc64: dhcp-debuginfo-4.2.5-58.el7_4.4.ppc.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.ppc64.rpm dhcp-devel-4.2.5-58.el7_4.4.ppc.rpm dhcp-devel-4.2.5-58.el7_4.4.ppc64.rpm ppc64le: dhcp-debuginfo-4.2.5-58.el7_4.4.ppc64le.rpm dhcp-devel-4.2.5-58.el7_4.4.ppc64le.rpm s390x: dhcp-debuginfo-4.2.5-58.el7_4.4.s390.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.s390x.rpm dhcp-devel-4.2.5-58.el7_4.4.s390.rpm dhcp-devel-4.2.5-58.el7_4.4.s390x.rpm x86_64: dhcp-debuginfo-4.2.5-58.el7_4.4.i686.rpm dhcp-debuginfo-4.2.5-58.el7_4.4.x86_64.rpm dhcp-devel-4.2.5-58.el7_4.4.i686.rpm dhcp-devel-4.2.5-58.el7_4.4.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 iQIVAwUBWvsGa9zjgjWX9erEAQj89A//TyBm+jdcVzwBVaw763eQl+jTsJ3UvQKo WgSZ6QjrZJ4WIbUJwHL4HdCqHUdamKO+4zUaSl3QHQKo+00Z2yHuZ3YuywCcPed0 QOSgkZISZaH4ugSLrzU47bZYLAgOT2oq0x9G30lfjYCM9Ht45HUQlImoldpUbSHm QyD4E4TJgm1FBtMtpTakIYVupVR1neV3fua0q4w8+mTbGnBtA5XHysKcjiK2Ls2I UHqf0VN0wdshQ+l2AcoUfzv1ykjceX0Wl2UET/1rp9jpMKg8IlUgw+zubZmGsA0s 1ulWpihtAM0ei96cGFgmmzQ/JauHRpaYE9tYe0w/Xru88kf1zj4FsgK+0QF+IiHz Rrii88ZX5IQkNBtcqkZSG8BC7BlXpPQTMi7uv4SG7AfKVYn3fBoxTVWe+Rnqtxpr +rMXh5uthewdMi2Oh6KYQ5YZw85RayybRoq4MIZ3N6lwYBp3fnO+0dcbf8akUdZD 5FJmc+QRuvo7gsjjewN6wszttVO1vMn1/mR6lPuRkh3lYteX6MJwjg3L/WBpop8j IqNGrmy3cZJC25tD2JGvXh86PszOlXlADT7FijAp8E7W/sN9U7xcfYZdl1YPxz9u JTZoiBEQL9qVcZmjsgZpXzzyh3wya9niyybq/s32L3+mlw+StYtQfIN6uUzixXK/ fx4kBeu/FqQ= =vOpl -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce