-----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-SA-2003.027 30-Mar-2003 ________________________________________________________________________ Package: sendmail Vulnerability: remote root exploit OpenPKG Specific: no Affected Releases: Affected Packages: Corrected Packages: OpenPKG CURRENT <= sendmail-8.12.8-20030328 >= sendmail-8.12.9-20030329 OpenPKG 1.2 <= sendmail-8.12.7-1.2.1 >= sendmail-8.12.7-1.2.2 OpenPKG 1.1 none N.A. Dependent Packages: none Description: Michal Zalewski discovered [1] a confirmed [2] buffer overflow vulnerability in all version of the Sendmail [0] MTA earlier than 8.12.9. The mail address parser performs insufficient bounds checking in certain conditions due to a "char" to "int" data type conversion, making it possible for an attacker to take control of the application. Attackers may remotely exploit this vulnerability to gain "root" access of any vulnerable Sendmail server. The Common Vulnerabilities and Exposures (CVE) project assigned the id CAN-2003-0161 [3] to the problem. Please check whether you are affected by running "<prefix>/bin/rpm -q sendmail". If you have the "sendmail" 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], fetch it from the OpenPKG FTP service [7] or a mirror location, verify its integrity [8], build a corresponding binary RPM from it [4] and update your OpenPKG installation by applying the binary RPM [5]. For the current release OpenPKG 1.2, perform the following operations to permanently fix the security problem (for other releases adjust accordingly). $ ftp ftp.openpkg.org ftp> bin ftp> cd release/1.2/UPD ftp> get sendmail-8.12.7-1.2.2.src.rpm ftp> bye $ <prefix>/bin/rpm -v --checksig sendmail-8.12.7-1.2.2.src.rpm $ <prefix>/bin/rpm --rebuild sendmail-8.12.7-1.2.2.src.rpm $ su - # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/sendmail-8.12.7-1.2.2.*.rpm ________________________________________________________________________ References: [0] http://www.sendmail.org/ [1] http://lists.netsys.com/pipermail/full-disclosure/2003-March/008973.html [2] http://www.securityfocus.com/archive/1/316760/2003-03-26/2003-04-01/0 [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0161 [4] http://www.openpkg.org/tutorial.html#regular-source [5] http://www.openpkg.org/tutorial.html#regular-binary [6] ftp://ftp.openpkg.org/release/1.2/UPD/sendmail-8.12.7-1.2.2.src.rpm [7] ftp://ftp.openpkg.org/release/1.2/UPD/ [8] http://www.openpkg.org/security.html#signature ________________________________________________________________________ For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG <openpkg@openpkg.org>" (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 <openpkg@openpkg.org> iD8DBQE+huYSgHWT4GPEy58RAhdpAKDGqKOKSGwfuxVT5imK+1H0LBDcPACgu1nq cia1t2PI8lNReMIeza3KLKI= =38Sm -----END PGP SIGNATURE-----
