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Ubuntu
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To browse through our weekly Linux Advisory Watch newsletters, click here.



Ubuntu: PHP vulnerabilities  27 April 2007 
Posted by Benjamin D. Thomas   
Stefan Esser discovered multiple vulnerabilities in the "Month of PHP bugs". The substr_compare() function did not sufficiently verify its length argument. This might be exploited to read otherwise unaccessible memory, which might lead to information disclosure. (CVE-2007-1375) The shared memory (shmop) functions did not verify resource types, thus they could be called with a wrong resource type that might contain user supplied data. This could be exploited to read and write arbitrary memory addresses of the PHP interpreter. This issue does not affect Ubuntu 7.04. (CVE-2007-1376)
 
Ubuntu: rdesktop regression  26 April 2007 
Posted by Benjamin D. Thomas   
USN-453-1 provided an updated libx11 package to fix a security vulnerability. This triggered an error in rdesktop so that it crashed on startup. This update fixes the problem.
 
Ubuntu: X.org vulnerability  18 April 2007 
Posted by Benjamin D. Thomas   
Multiple integer overflows were found in the XGetPixel function of libx11. If a user were tricked into opening a specially crafted XWD image, remote attackers could execute arbitrary code with user privileges.
 
Ubuntu: KDE library vulnerability  11 April 2007 
Posted by Benjamin D. Thomas   
The Qt library did not correctly handle truncated UTF8 strings, which could cause some applications to incorrectly filter malicious strings. If a Konqueror user were tricked into visiting a web site containing specially crafted strings, normal XSS prevention could be bypassed allowing a remote attacker to steal confidential data.
 
Ubuntu: Linux kernel vulnerabilities  10 April 2007 
Posted by Benjamin D. Thomas   
The kernel key management code did not correctly handle key reuse. A local attacker could create many key requests, leading to a denial of service. (CVE-2007-0006)
 
Ubuntu: ipsec-tools vulnerability  09 April 2007 
Posted by Benjamin D. Thomas   
A flaw was discovered in the IPSec key exchange server "racoon". Remote attackers could send a specially crafted packet and disrupt established IPSec tunnels, leading to a denial of service.
 
Ubuntu: krb5 vulnerabilities  03 April 2007 
Posted by Benjamin D. Thomas   
The krb5 telnet service did not appropriately verify user names. A remote attacker could log in as the root user by requesting a specially crafted user name.
 
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