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Ubuntu: Linux kernel vulnerability  12 February 2008 
Posted by Benjamin D. Thomas   
Wojciech Purczynski discovered that the vmsplice system call did not properly perform verification of user-memory pointers. A local attacker could exploit this to overwrite arbitrary kernel memory and gain root privileges. (CVE-2008-0600)
Ubuntu: Firefox vulnerabilities  07 February 2008 
Posted by Benjamin D. Thomas   
Various flaws were discovered in the browser and JavaScript engine. By tricking a user into opening a malicious web page, an attacker could execute arbitrary code with the user's privileges. (CVE-2008-0412, CVE-2008-0413)
Ubuntu: Apache vulnerabilities  04 February 2008 
Posted by Benjamin D. Thomas   
It was discovered that Apache did not sanitize the Expect header from an HTTP request when it is reflected back in an error message, which could result in browsers becoming vulnerable to cross-site scripting attacks when processing the output. With cross-site scripting vulnerabilities, if a user were tricked into viewing server output during a crafted server request, a remote attacker could exploit this to modify the contents, or steal confidential data (such as passwords), within the same domain. This was only vulnerable in Ubuntu 6.06. (CVE-2006-3918)
Ubuntu: Linux kernel vulnerabilities  04 February 2008 
Posted by Benjamin D. Thomas   
The minix filesystem did not properly validate certain filesystem values. If a local attacker could trick the system into attempting to mount a corrupted minix filesystem, the kernel could be made to hang for long periods of time, resulting in a denial of service. This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2006-6058)
Ubuntu: PulseAudio vulnerability  31 January 2008 
Posted by Benjamin D. Thomas   
It was discovered that PulseAudio did not properly drop privileges when running as a daemon. Local users may be able to exploit this and gain privileges. The default Ubuntu configuration is not affected.
Ubuntu: regression  19 January 2008 
Posted by Benjamin D. Thomas   
Multiple overflows were discovered in the XFree86-Misc, XInput-Misc, TOG-CUP, EVI, and MIT-SHM extensions which did not correctly validate function arguments. An authenticated attacker could send specially crafted requests and gain root privileges. (CVE-2007-5760, CVE-2007-6427, CVE-2007-6428, CVE-2007-6429)
Ubuntu: apt-listchanges vulnerability  18 January 2008 
Posted by Benjamin D. Thomas   
Felipe Sateler discovered that apt-listchanges did not use safe paths when importing additional Python libraries. A local attacker could exploit this and execute arbitrary commands as the user running apt-listchanges.
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