From openpkg@openpkg.org Wed Nov 2 15:00:19 2005 From: OpenPKG To: bugtraq@securityfocus.com Date: Wed, 2 Nov 2005 19:02:22 +0100 Subject: [OpenPKG-SA-2005.023] OpenPKG Security Advisory (openvpn) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________ OpenPKG Security Advisory The OpenPKG Project http://www.openpkg.org/security.html http://www.openpkg.org openpkg-security@openpkg.org openpkg@openpkg.org OpenPKG-SA-2005.023 02-Nov-2005 ________________________________________________________________________ Package: openvpn Vulnerability: arbitrary code execution, denial of service OpenPKG Specific: no Affected Releases: Affected Packages: Corrected Packages: OpenPKG CURRENT <= openvpn-2.0.2-20050928 >= openvpn-2.0.4-20051102 OpenPKG 2.5 <= openvpn-2.0.2-2.5.0 >= openvpn-2.0.2-2.5.1 OpenPKG 2.4 <= openvpn-2.0-2.4.0 >= openvpn-2.0-2.4.1 OpenPKG 2.3 N.A. N.A. Dependent Packages: none Description: According to a BUGTRAQ report [0], a Denial of Service (DoS) vulnerability exists in the OpenVPN [1] network security application. The vulnerability allows a malicious or compromised server to execute arbitrary code on the client. The Common Vulnerabilities and Exposures (CVE) project assigned the id CVE-2005-3393 [2] to the problem. Additionally, another DoS situation can occur if OpenVPN in TCP server mode receives an error on accept(2) and the resulting exception handler causes a segmentation fault. The Common Vulnerabilities and Exposures (CVE) project assigned the id CVE-2005-3409 [3] to the problem. Please check whether you are affected by running "/bin/openpkg rpm -q openvpn". If you have the "openvpn" package installed and its version is affected (see above), we recommend that you immediately upgrade it (see Solution) [4][5]. Solution: Select the updated source RPM appropriate for your OpenPKG release [6][7], fetch it from the OpenPKG FTP service [8][9] or a mirror location, verify its integrity [10], build a corresponding binary RPM from it [3] and update your OpenPKG installation by applying the binary RPM [5]. For the most recent release OpenPKG 2.5, perform the following operations to permanently fix the security problem (for other releases adjust accordingly). $ ftp ftp.openpkg.org ftp> bin ftp> cd release/2.5/UPD ftp> get openvpn-2.0.2-2.5.1.src.rpm ftp> bye $ /bin/openpkg rpm -v --checksig openvpn-2.0.2-2.5.1.src.rpm $ /bin/openpkg rpm --rebuild openvpn-2.0.2-2.5.1.src.rpm $ su - # /bin/openpkg rpm -Fvh /RPM/PKG/openvpn-2.0.2-2.5.1.*.rpm ________________________________________________________________________ References: [0] http://marc.theaimsgroup.com/?l=bugtraq&m=113081023121059&w=2 [1] http://www.openvpn.net/ [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3393 [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3409 [4] http://www.openpkg.org/tutorial.html#regular-source [5] http://www.openpkg.org/tutorial.html#regular-binary [6] ftp://ftp.openpkg.org/release/2.5/UPD/openvpn-2.0.2-2.5.1.src.rpm [7] ftp://ftp.openpkg.org/release/2.4/UPD/openvpn-2.0-2.4.1.src.rpm [8] ftp://ftp.openpkg.org/release/2.5/UPD/ [9] ftp://ftp.openpkg.org/release/2.4/UPD/ [10] http://www.openpkg.org/security.html#signature ________________________________________________________________________ For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG " (ID 63C4CB9F) of the OpenPKG project which you can retrieve from http://pgp.openpkg.org and hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/ for details on how to verify the integrity of this advisory. ________________________________________________________________________ -----BEGIN PGP SIGNATURE----- Comment: OpenPKG iD8DBQFDaPJPgHWT4GPEy58RAmDqAKCxyFlxNv4WfdCditQrK8+ex6zl+ACeJjki ussQ4vs+e3IvPJJILk0ubWM= =Q322 -----END PGP SIGNATURE-----