- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201804-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ISC DHCP: Multiple vulnerabilities Date: April 08, 2018 Bugs: #644708, #649010 ID: 201804-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in ISC DHCP, the worst of which could allow for the remote execution of arbitrary code. Background ========== ISC DHCP is a Dynamic Host Configuration Protocol (DHCP) client/server. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/dhcp < 4.3.6_p1 >= 4.3.6_p1 Description =========== Multiple vulnerabilities have been discovered in ISC DHCP. Please review the CVE identifiers referenced below for details. Impact ====== Remote attackers could execute arbitrary code, cause a Denial of Service condition, or have other unspecified impacts. Workaround ========== There are no known workarounds at this time for CVE-2018-5732 or CVE-2018-5733. In accordance with upstream documentation, the recommended workaround for CVE-2017-3144 is, "to disallow access to the OMAPI control port from unauthorized clients (in accordance with best practices for server operation)." Resolution ========== All DHCP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/dhcp-4.3.6_p1" References ========== [ 1 ] CVE-2017-3144 https://nvd.nist.gov/vuln/detail/CVE-2017-3144 [ 2 ] CVE-2018-5732 https://nvd.nist.gov/vuln/detail/CVE-2018-5732 [ 3 ] CVE-2018-5733 https://nvd.nist.gov/vuln/detail/CVE-2018-5733 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201804-05 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2018 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5