Security Advisory (MDKSA-2004:023): openssl

[aru]

MandrakeSoft Security Advisory MDKSA-2004:023 : openssl

 

March 17th, 2004

Updated openssl packages fix multiple vulnerabilities

 

A vulnerability was discovered by the OpenSSL group using the Codenomicon TLS Test Tool. The test uncovered a null-pointer assignment in the do_change_cipher_spec() function whih could be abused by a remote attacker crafting a special SSL/TLS handshake against a server that used the OpenSSL library in such a way as to cause OpenSSL to crash. Depending on the application in question, this could lead to a Denial of Service (DoS). This vulnerability affects both OpenSSL 0.9.6 (0.9.6c-0.9.6k) and 0.9.7 (0.9.7a-0.9.7c). CVE has assigned CAN-2004-0079 to this issue.

 

Another vulnerability was discovered by Stephen Henson in OpenSSL versions 0.9.7a-0.9.7c; there is a flaw in the SSL/TLS handshaking code when using Kerberos ciphersuites. A remote attacker could perform a carefully crafted SSL/TLS handshake against a server configured to use Kerberos ciphersuites in such a way as to cause OpenSSL to crash. CVE has assigned CAN-2004-0112 to this issue.

 

Mandrakesoft urges users to upgrade to the packages provided that have been patched to protect against these problems. We would also like to thank NISCC for their assistance in coordinating the disclosure of these problems.

 

Please note that you will need to restart any SSL-enabled services for the patch to be effective, including (but not limited to) Apache, OpenLDAP, etc.

 

 

The released versions of Mandrake GNU/Linux affected are:

• 9.0
  
• 9.1
  
• 9.2
  
• 9.2/AMD64
  
• Multi Network Firewall 8.2
  
• Corporate Server 2.1
  

Full information about this advisory, including the updated packages, is available at:

www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2004:023

 

Other references:

http://cve.mitre.org/cgi-bin/cvename.cgi?n...e=CAN-2004-0079

http://cve.mitre.org/cgi-bin/cvename.cgi?n...e=CAN-2004-0112

 

Posted automatically by aru (mdksec2mub v0.0.8)