Mandrake alert: stunnel update

Posted by dave on Jan 16, 2002 1:27 PM EDT
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All versions of stunnel from 3.15 to 3.21c are vulnerable to format string bugs in the functions which implement smtp, pop, and nntp client negotiations. Using stunnel with the "-n service" option and the "-c" client mode option, a malicious server could use the format sting vulnerability to run arbitrary code as the owner of the current stunnel process. Version 3.22 is not vulnerable to this bug.

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________________________________________________________________________

Mandrake Linux Security Update Advisory ________________________________________________________________________

Package name: stunnel Advisory ID: MDKSA-2002:004 Date: January 16th, 2002 Affected versions: 8.1 ________________________________________________________________________

Problem Description:

All versions of stunnel from 3.15 to 3.21c are vulnerable to format string bugs in the functions which implement smtp, pop, and nntp client negotiations. Using stunnel with the "-n service" option and the "-c" client mode option, a malicious server could use the format sting vulnerability to run arbitrary code as the owner of the current stunnel process. Version 3.22 is not vulnerable to this bug. ________________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0002 http://marc.theaimsgroup.com/?l=stunnel-users&m=100868569203440 http://marc.theaimsgroup.com/?l=stunnel-users&m=100913948312986 ________________________________________________________________________

Updated Packages:

Mandrake Linux 8.1: 08204f11728f2c6b6152de9ebb562ac5 8.1/RPMS/stunnel-3.22-1.1mdk.i586.rpm e85fbd3435759fa7b94bb5c371738b30 8.1/SRPMS/stunnel-3.22-1.1mdk.src.rpm

Mandrake Linux 8.1/ia64: 3616248cce2e982035b6905252610980 ia64/8.1/RPMS/stunnel-3.22-1.1mdk.ia64.rpm e85fbd3435759fa7b94bb5c371738b30 ia64/8.1/SRPMS/stunnel-3.22-1.1mdk.src.rpm ________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

To upgrade automatically, use MandrakeUpdate. The verification of md5 checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm". A list of FTP mirrors can be obtained from:

http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the integrity of the downloaded package. You can do this with the command:

rpm --checksig <filename>

All packages are signed by MandrakeSoft for security. You can obtain the GPG public key of the Mandrake Linux Security Team from:

https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours to update.

You can view other update advisories for Mandrake Linux at:

http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that anyone can subscribe to. Information on these lists can be obtained by visiting:

http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

security@linux-mandrake.com ________________________________________________________________________

Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team <security@linux-mandrake.com>

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