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[ GLSA 200907-12 ] ISC DHCP: dhcpclient Remote execution of arbitrary code
From: Alex Legler <a3li () gentoo org>
Date: Tue, 14 Jul 2009 20:09:03 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200907-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: ISC DHCP: dhcpclient Remote execution of arbitrary code Date: July 14, 2009 Bugs: #277729 ID: 200907-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A buffer overflow in dhclient as included in the ISC DHCP implementation allows for the remote execution of arbitrary code with root privileges. Background ========== ISC DHCP is the reference implementation of the Dynamic Host Configuration Protocol as specified in RFC 2131. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/dhcp < 3.1.1-r1 >= 3.1.1-r1 Description =========== The Mandriva Linux Engineering Team has reported a stack-based buffer overflow in the subnet-mask handling of dhclient. Impact ====== A remote attacker might set up a rogue DHCP server in a victim's local network, possibly leading to the execution of arbitrary code with root privileges. Workaround ========== There is no known workaround at this time. Resolution ========== All ISC DHCP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/dhcp-3.1.1-r1" References ========== [ 1 ] CVE-2009-0692 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0692 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200907-12.xml 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 http://bugs.gentoo.org. License ======= Copyright 2009 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. http://creativecommons.org/licenses/by-sa/2.5
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- [ GLSA 200907-12 ] ISC DHCP: dhcpclient Remote execution of arbitrary code Alex Legler (Jul 14)