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Ubuntu: fetchmail vulnerabilities  25 September 2007 
Posted by Benjamin D. Thomas   
Gaetan Leurent discovered a vulnerability in the APOP protocol based on MD5 collisions. As fetchmail supports the APOP protocol, this vulnerability can be used by attackers to discover a portion of the APOP user's authentication credentials.
Ubuntu: elinks vulnerability  25 September 2007 
Posted by Benjamin D. Thomas   
Kalle Olavi Niemitalo discovered that if elinks makes a POST request to an HTTPS URL through a proxy, information may be sent in clear-text between elinks and the proxy. Attackers with access to the network could steal sensitive information (such as passwords).
Ubuntu: Linux kernel vulnerabilities  24 September 2007 
Posted by Benjamin D. Thomas   
Evan Teran discovered that the Linux kernel ptrace routines did not correctly handle certain requests robustly. Local attackers could exploit this to crash the system, causing a denial of service. (CVE-2007-3731)
Ubuntu: kdm vulnerability  24 September 2007 
Posted by Benjamin D. Thomas   
It was discovered that KDM would allow logins without password checks under certain circumstances. If autologin was configured, and "shutdown with password" enabled, a local user could exploit the problem and gain root privileges.
Ubuntu: xfsdump vulnerability  20 September 2007 
Posted by Benjamin D. Thomas   
Paul Martin discovered that xfs_fsr creates a temporary directory with insecure permissions. This allows a local attacker to exploit a race condition in xfs_fsr to read or overwrite arbitrary files on xfs filesystems.
Ubuntu: t1lib vulnerability  19 September 2007 
Posted by Benjamin D. Thomas   
It was discovered that t1lib does not properly perform bounds checking which can result in a buffer overflow vulnerability. An attacker could send specially crafted input to applications linked against t1lib which could result in a DoS or arbitrary code execution.
Ubuntu: vulnerability  18 September 2007 
Posted by Benjamin D. Thomas   
Aaron Plattner discovered that the Composite extension did not correctly calculate the size of buffers when copying between different bit depths. An authenticated user could exploit this to execute arbitrary code with root privileges.
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