From: Linux Mandrake Security Team <security@linux-mandrake.com> Subject: [Security Announce] MDKSA-2001:040-1 - samba update Date: Mon, 21 May 2001 12:06:05 -0600 ______________________________________________________________________ Linux-Mandrake Security Update Advisory ______________________________________________________________________ Package name: samba Date: May 21st, 2001 Original Advisory Date: April 20th, 2001 Advisory ID: MDKSA-2001:040-1 Affected versions: 7.1, 7.2, 8.0, Corporate Server 1.0.1 ______________________________________________________________________ Problem Description: A vulnerability found by Marcus Meissner exists in Samba where it was not creating temporary files safely which could allow local users to overwrite files that they may not have access to. This happens when a remote user queried a printer queue and samba would create a temporary file in which the queue's data was written. Because Samba created the file insecurely and used a predictable filename, a local attacker could cause Samba to overwrite files that the attacker did not have access to. As well, the smbclient "more" and "mput" commands also created temporary files insecurely. The vulnerability is present in Samba 2.0.7 and lower. 2.0.8 and 2.2.0 correct this behaviour. Update: The Samba 2.0.8 release did not entirely fix the temporary file issues in previous versions. The Samba team released 2.0.9 recently which does fix these problems completely. As well, the 8.0 packages will now not attempt to use /root/tmp as the temporary directory, but /var/tmp. ______________________________________________________________________ References: http://www.securityfocus.com/frames/?content=/vdb/bottom.html?vid=2617 ______________________________________________________________________ Please verify the update prior to upgrading to ensure the integrity of the downloaded package. You can do this with the command: rpm --checksig package.rpm You can get the GPG public key of the Linux-Mandrake Security Team at http://www.linux-mandrake.com/en/security/RPM-GPG-KEYS If you use MandrakeUpdate, the verification of md5 checksum and GPG signature is performed automatically for you. Linux-Mandrake 7.1: 5758d0764be77871603cad4eec2d9543 7.1/RPMS/samba-2.0.9-1.2mdk.i586.rpm a81506bb03291cf4b1c6b204ccd88b81 7.1/RPMS/samba-client-2.0.9-1.2mdk.i586.rpm 44458f2c0267a6abae962c611c9a0519 7.1/RPMS/samba-common-2.0.9-1.2mdk.i586.rpm 550496a6af630aa60056a6e707a57f24 7.1/SRPMS/samba-2.0.9-1.2mdk.src.rpm Linux-Mandrake 7.2: 10be481564cf6f7142cb5d13dfeb97da 7.2/RPMS/samba-2.0.9-1.1mdk.i586.rpm 5ce47c39b6a3d8ffd5a6927d89952bf0 7.2/RPMS/samba-client-2.0.9-1.1mdk.i586.rpm 280a8e26f761a1ea819f33b0510416de 7.2/RPMS/samba-common-2.0.9-1.1mdk.i586.rpm 33dd76ea5a5c8729f607cab34b959131 7.2/SRPMS/samba-2.0.9-1.1mdk.src.rpm Linux-Mandrake 8.0: 591e72613b411f32f7d84fc1dcc81934 8.0/RPMS/samba-2.0.9-1.3mdk.i586.rpm 1e12a457a568df8c80ee8c53fcca2fe2 8.0/RPMS/samba-client-2.0.9-1.3mdk.i586.rpm 88c3f60519fa5c639b844da0d792ef6c 8.0/RPMS/samba-common-2.0.9-1.3mdk.i586.rpm 92b51b940e26d66992cdfe61dc9d1f46 8.0/SRPMS/samba-2.0.9-1.3mdk.src.rpm Corporate Server 1.0.1: 29f91e9767080d484661c0ac0a12bfb0 1.0.1/RPMS/samba-2.0.9-1.2mdk.i586.rpm 145fa01d3761b784881812fe8e98be4f 1.0.1/RPMS/samba-client-2.0.9-1.2mdk.i586.rpm c2a085bcebe32d3c49274524a0b56eeb 1.0.1/RPMS/samba-common-2.0.9-1.2mdk.i586.rpm 550496a6af630aa60056a6e707a57f24 1.0.1/SRPMS/samba-2.0.9-1.2mdk.src.rpm ______________________________________________________________________ Bug IDs fixed (see https://qa.mandrakesoft.com for more information): ______________________________________________________________________ To upgrade automatically, use MandrakeUpdate. If you want to upgrade manually, download the updated package from one of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm". You can download the updates directly from one of the mirror sites listed at: http://www.linux-mandrake.com/en/ftp.php3. Updated packages are available in the "updates/[ver]/RPMS/" directory. For example, if you are looking for an updated RPM package for Linux-Mandrake 8.0, look for it in "updates/8.0/RPMS/". Updated source RPMs are available as well, but you generally do not need to download them. Please be aware that sometimes it takes the mirrors a few hours to update. You can view other security advisories for Linux-Mandrake at: http://www.linux-mandrake.com/en/security/ If you want to report vulnerabilities, please contact security@linux-mandrake.com ______________________________________________________________________ Linux-Mandrake has two security-related mailing list services that anyone can subscribe to: security-announce@linux-mandrake.com Linux-Mandrake's security announcements mailing list. Only announcements are sent to this list and it is read-only. security-discuss@linux-mandrake.com Linux-Mandrake's security discussion mailing list. This list is open to anyone to discuss Linux-Mandrake security specifically and Linux security in general. To subscribe to either list, send a message to sympa@linux-mandrake.com with "subscribe [listname]" in the body of the message. To remove yourself from either list, send a message to sympa@linux-mandrake.com with "unsubscribe [listname]" in the body of the message. To get more information on either list, send a message to sympa@linux-mandrake.com with "info [listname]" in the body of the message. Optionally, you can use the web interface to subscribe to or unsubscribe from either list: http://www.linux-mandrake.com/en/flists.php3#security