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Ubuntu: MySQL vulnerabilities  17 November 2008 
Posted by Benjamin D. Thomas   
It was discovered that MySQL could be made to overwrite existing table files in the data directory. An authenticated user could use the DATA DIRECTORY and INDEX DIRECTORY options to possibly bypass privilege checks. This update alters table creation behaviour by disallowing the use of the MySQL data directory in DATA DIRECTORY and INDEX DIRECTORY options. (CVE-2008-2079, CVE-2008-4097 and CVE-2008-4098) It was discovered that MySQL did not handle empty bit-string literals properly. An attacker could exploit this problem and cause the MySQL server to crash, leading to a denial of service. (CVE-2008-3963)
 
Ubuntu: gnome-screensaver vulnerabilities  11 November 2008 
Posted by Benjamin D. Thomas   
It was discovered that the notify feature in gnome-screensaver could let a local attacker read the clipboard contents of a locked session by using Ctrl-V. (CVE-2007-6389) Alan Matsuoka discovered that gnome-screensaver did not properly handle network outages when using a remote authentication service. During a network interruption, or by disconnecting the network cable, a local attacker could gain access to locked sessions. (CVE-2008-0887)
 
Ubuntu: Netpbm vulnerability  06 November 2008 
Posted by Benjamin D. Thomas   
It was discovered that Netpbm could be made to overrun a buffer when loading certain images. If a user were tricked into opening a specially crafted GIF image, remote attackers could cause a denial of service or execute arbitrary code with user privileges.
 
Ubuntu: Tk vulnerability  06 November 2008 
Posted by Benjamin D. Thomas   
It was discovered that Tk could be made to overrun a buffer when loading certain images. If a user were tricked into opening a specially crafted GIF image, remote attackers could cause a denial of service or execute arbitrary code with user privileges.
 
Ubuntu: enscript vulnerability  03 November 2008 
Posted by Benjamin D. Thomas   
Ulf Härnhammar discovered multiple stack overflows in enscript's handling of special escape arguments. If a user or automated system were tricked into processing a malicious file with the "-e" option enabled, a remote attacker could execute arbitrary code or cause enscript to crash, possibly leading to a denial of service.
 
Ubuntu: Thunderbird vulnerabilities  25 September 2008 
Posted by Benjamin D. Thomas   
It was discovered that the same-origin check in Thunderbird could be bypassed. If a user had JavaScript enabled and were tricked into opening a malicious website, an attacker may be able to execute JavaScript in the context of a different website. (CVE-2008-3835) Several problems were discovered in the browser engine of Thunderbird. If a user had JavaScript enabled, this could allow an attacker to execute code with chrome privileges. (CVE-2008-4058, CVE-2008-4059, CVE-2008-4060)
 
Ubuntu: Firefox and xulrunner regression  25 September 2008 
Posted by Benjamin D. Thomas   
USN-645-1 fixed vulnerabilities in Firefox and xulrunner. The upstream patches introduced a regression in the saved password handling. While password data was not lost, if a user had saved any passwords with non-ASCII characters, Firefox could not access the password database. This update fixes the problem.
 
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