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Ubuntu: Linux kernel vulnerabilities  19 July 2007 
Posted by Benjamin D. Thomas   
A flaw was discovered in dvb ULE decapsulation. A remote attacker could send a specially crafted message and cause a denial of service. The compat_sys_mount function allowed local users to cause a denial of service when mounting a smbfs filesystem in compatibility mode.
 
Ubuntu: mod_perl vulnerability  18 July 2007 
Posted by Benjamin D. Thomas   
Alex Solovey discovered that mod_perl did not correctly validate certain regular expression matches. A remote attacker could send a specially crafted request to a web application using mod_perl, causing the web server to monopolize CPU resources. This could lead to a remote denial of service.
 
Ubuntu: Dovecot vulnerability  17 July 2007 
Posted by Benjamin D. Thomas   
It was discovered that Dovecot, when configured to use non-system-user spools and compressed folders, would allow directory traversals in mailbox names. Remote authenticated users could potentially read email owned by other users.
 
Ubuntu: PHP vulnerabilities  17 July 2007 
Posted by Benjamin D. Thomas   
It was discovered that the PHP xmlrpc extension did not correctly check heap memory allocation sizes. A remote attacker could send a specially crafted request to a PHP application using xmlrpc and execute arbitrary code as the Apache user.
 
Ubuntu: curl vulnerability  17 July 2007 
Posted by Benjamin D. Thomas   
It was discovered that the GnuTLS certificate verification methods implemented in Curl did not check for expiration and activation dates. When performing validations, tools using libcurl3-gnutls would incorrectly allow connections to sites using expired certificates.
 
Ubuntu: libnet-dns-perl vulnerabilities  13 July 2007 
Posted by Benjamin D. Thomas   
Peter Johannes Holzer discovered that the Net::DNS Perl module had predictable sequence numbers. This could allow remote attackers to carry out DNS spoofing, leading to possible man-in-the-middle attacks.
 
Ubuntu: OpenOffice.org vulnerability  11 July 2007 
Posted by Benjamin D. Thomas   
John Heasman discovered that OpenOffice did not correctly validate the sizes of tags in RTF documents. If a user were tricked into opening a specially crafted document, a remote attacker could execute arbitrary code with user privileges.
 
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