-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________
OpenPKG Security Advisory The OpenPKG Project http://www.openpkg.org/security.html http://www.openpkg.org [EMAIL PROTECTED] [EMAIL PROTECTED] OpenPKG-SA-2004.033 22-Jul-2004 ________________________________________________________________________ Package: samba Vulnerability: arbitrary code execution OpenPKG Specific: no Affected Releases: Affected Packages: Corrected Packages: OpenPKG CURRENT <= samba-3.0.4-20040722 >= samba-3.0.5-20040722 OpenPKG 2.1 <= samba-3.0.4-2.1.0 >= samba-3.0.4-2.1.1 OpenPKG 2.0 <= samba-2.2.8a-2.0.0 >= samba-2.2.8a-2.0.1 Dependent Packages: none Description: Evgeny Demidov discovered that the Samba SMB/CIFS server [1] has a buffer overflow bug in the Samba Web Administration Tool (SWAT) on decoding Base64 data during HTTP Basic Authentication. Samba version between 3.0.2 through 3.0.4 are affected. The Common Vulnerabilities and Exposures (CVE) project assigned the id CAN-2004-0600 [2] to the problem. Another buffer overflow bug has been located in the Samba code used to support the "mangling method = hash" functionality. The default setting for this parameter is "mangling method = hash2" and therefore Samba is not vulnerable by default. Samba versions between 2.2.0 through 2.2.9 and 3.0.0 through 3.0.4 are affected. The Common Vulnerabilities and Exposures (CVE) project assigned the id CAN-2004-0686 [3] to the problem. Please check whether you are affected by running "<prefix>/bin/rpm -q samba". If you have the "samba" 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 [4] and update your OpenPKG installation by applying the binary RPM [5]. For the current release OpenPKG 2.1, perform the following operations to permanently fix the security problem (for other releases adjust accordingly). $ ftp ftp.openpkg.org ftp> bin ftp> cd release/2.1/UPD ftp> get samba-3.0.4-2.1.1.src.rpm ftp> bye $ <prefix>/bin/rpm -v --checksig samba-3.0.4-2.1.1.src.rpm $ <prefix>/bin/rpm --rebuild samba-3.0.4-2.1.1.src.rpm $ su - # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/samba-3.0.4-2.1.1.*.rpm ________________________________________________________________________ References: [1] http://www.samba.org/ [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0600 [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0686 [4] http://www.openpkg.org/tutorial.html#regular-source [5] http://www.openpkg.org/tutorial.html#regular-binary [6] ftp://ftp.openpkg.org/release/2.1/UPD/samba-3.0.4-2.1.1.src.rpm [7] ftp://ftp.openpkg.org/release/2.0/UPD/samba-2.2.8a-2.0.1.src.rpm [8] ftp://ftp.openpkg.org/release/2.1/UPD/ [9] ftp://ftp.openpkg.org/release/2.0/UPD/ [10] http://www.openpkg.org/security.html#signature ________________________________________________________________________ For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG <[EMAIL PROTECTED]>" (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 <[EMAIL PROTECTED]> iD8DBQFA/4tEgHWT4GPEy58RAmUiAKCIn5+KO6CQKob3Ic8zw58zZGYrIwCgvhsM J3K6l6DoQK8EK/Z7BaWzH/I= =WOpx -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html