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Ubuntu: Thunderbird vulnerabilities  06 March 2007 
Posted by Benjamin D. Thomas   
The SSLv2 protocol support in the NSS library did not sufficiently check the validity of public keys presented with a SSL certificate. A malicious SSL web site using SSLv2 could potentially exploit this to execute arbitrary code with the user's privileges. (CVE-2007-0008) The SSLv2 protocol support in the NSS library did not sufficiently verify the validity of client master keys presented in an SSL client certificate. A remote attacker could exploit this to execute arbitrary code in a server application that uses the NSS library.
Ubuntu: mod_python vulnerability  06 March 2007 
Posted by Benjamin D. Thomas   
Miles Egan discovered that mod_python, when used in output filter mode, did not handle output larger than 16384 bytes, and would display freed memory, possibly disclosing private data. Thanks to Jim Garrison of the Software Freedom Law Center for identifying the original bug as a security vulnerability.
Ubuntu: tcpdump vulnerability  06 March 2007 
Posted by Benjamin D. Thomas   
Moritz Jodeit discovered that tcpdump had an overflow in the 802.11 packet parser. Remote attackers could send specially crafted packets, crashing tcpdump, possibly leading to a denial of service.
Ubuntu: Firefox regression  02 March 2007 
Posted by Benjamin D. Thomas   
USN-428-1 fixed vulnerabilities in Firefox 1.5. However, changes to library paths caused applications depending on libnss3 to fail to start up. This update fixes the problem.
Ubuntu: nvidia-glx-config regression  01 March 2007 
Posted by Benjamin D. Thomas   
USN-416-1 fixed various vulnerabilities in the Linux kernel. Unfortunately that update caused the 'nvidia-glx-config' script to not work any more. The new version fixes the problem. We apologize for the inconvenience.
Ubuntu: Firefox vulnerabilities  28 February 2007 
Posted by Benjamin D. Thomas   
Several flaws have been found in Firefox that could be used to perform Cross-site scripting attacks.

Ubuntu: enigmail vulnerability  23 February 2007 
Posted by Benjamin D. Thomas   
Mikhail Markin reported that enigmail incorrectly handled memory allocations for certain large encrypted attachments. This caused Thunderbird to crash and thus caused the entire message to be inaccessible.
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