From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1MdWeL-0003if-S2 for garchives@archives.gentoo.org; Tue, 18 Aug 2009 21:55:26 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 68D16E04A5; Tue, 18 Aug 2009 21:39:09 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id E36B0E0466 for ; Tue, 18 Aug 2009 21:38:14 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id 9FF9A6578A for ; Tue, 18 Aug 2009 21:38:14 +0000 (UTC) X-Virus-Scanned: amavisd-new at gentoo.org X-Spam-Score: -3.012 X-Spam-Level: X-Spam-Status: No, score=-3.012 required=5.5 tests=[AWL=-0.413, BAYES_00=-2.599] Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9cpN2ykULfLJ for ; Tue, 18 Aug 2009 21:38:07 +0000 (UTC) Received: from mail.netloc.info (mail.netloc.info [84.16.251.62]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTP id 87BDA66F56 for ; Tue, 18 Aug 2009 21:38:07 +0000 (UTC) Received: from neon (p50818AE5.dip0.t-ipconnect.de [80.129.138.229]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client did not present a certificate) by mail.netloc.info (Postfix) with ESMTPSA id E45929F62D; Tue, 18 Aug 2009 23:38:03 +0200 (CEST) Date: Tue, 18 Aug 2009 23:37:39 +0200 From: Alex Legler To: gentoo-announce@lists.gentoo.org Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk, security-alerts@linuxsecurity.com Subject: [gentoo-announce] [ GLSA 200908-08 ] ISC DHCP: dhcpd Denial of Service Message-ID: <20090818233739.7d54bf66@neon> X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.5; x86_64-pc-linux-gnu) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-announce@lists.gentoo.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/2fuUaU9u.7UPIKTZM_yNTds"; protocol="application/pgp-signature" X-Archives-Salt: 3672bee6-218f-49e3-b119-382be09c8b57 X-Archives-Hash: 60640c465eb8fc41257645b37a2f6aab --Sig_/2fuUaU9u.7UPIKTZM_yNTds Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200908-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ISC DHCP: dhcpd Denial of Service Date: August 18, 2009 Bugs: #275231 ID: 200908-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis =3D=3D=3D=3D=3D=3D=3D=3D dhcpd as included in the ISC DHCP implementation does not properly handle special conditions, leading to a Denial of Service. Background =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D ISC DHCP is the reference implementation of the Dynamic Host Configuration Protocol as specified in RFC 2131. Affected packages =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/dhcp < 3.1.2_p1 >=3D 3.1.2_p1 Description =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Christoph Biedl discovered that dhcpd does not properly handle certain DHCP requests when configured both using "dhcp-client-identifier" and "hardware ethernet". Impact =3D=3D=3D=3D=3D=3D A remote attacker might send a specially crafted request to dhcpd, possibly resulting in a Denial of Service (daemon crash). Workaround =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D There is no known workaround at this time. Resolution =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D All ISC DHCP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose =3Dnet-misc/dhcp-3.1.2_p1 References =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 1 ] CVE-2009-1892 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1892 Availability =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200908-08.xml Concerns? =3D=3D=3D=3D=3D=3D=3D=3D=3D 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 =3D=3D=3D=3D=3D=3D=3D 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 --Sig_/2fuUaU9u.7UPIKTZM_yNTds Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) iEYEARECAAYFAkqLHyYACgkQk+oqhfPAZGlUegCaAkhFjF2LBwpMRYhmcPWGnCZR plgAn0x28Wu22TLm8tP0e1QHjIA8t+XU =CpGv -----END PGP SIGNATURE----- --Sig_/2fuUaU9u.7UPIKTZM_yNTds--