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



Ubuntu: jasper vulnerability  21 August 2007 
Posted by Benjamin D. Thomas   
It was discovered that Jasper did not correctly handle corrupted JPEG2000 images. By tricking a user into opening a specially crafted JPG, a remote attacker could cause the application using libjasper to crash, resulting in a denial of service.
 
Ubuntu: rsync vulnerability  20 August 2007 
Posted by Benjamin D. Thomas   
Sebastian Krahmer discovered that rsync contained an off-by-one miscalculation when handling certain file paths. By creating a specially crafted tree of files and tricking an rsync server into processing them, a remote attacker could write a single NULL to stack memory, possibly leading to arbitrary code execution.
 
Ubuntu: Apache vulnerabilities  20 August 2007 
Posted by Benjamin D. Thomas   
Stefan Esser discovered that mod_status did not force a character set, which could result in browsers becoming vulnerable to XSS attacks when processing the output. If a user were tricked into viewing server status 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. By default, mod_status is disabled in Ubuntu.
 
Ubuntu: libvorbis vulnerabilities  16 August 2007 
Posted by Benjamin D. Thomas   
David Thiel discovered that libvorbis did not correctly verify the size of certain headers, and did not correctly clean up a broken stream. If a user were tricked into processing a specially crafted Vorbis stream, a remote attacker could execute arbitrary code with the user's privileges.
 
Ubuntu: xfce4-terminal vulnerability  13 August 2007 
Posted by Benjamin D. Thomas   
Lasse Kärkkäinen discovered that the Xfce Terminal did not correctly escape shell meta-characters during "Open Link" actions. If a remote attacker tricked a user into opening a specially crafted URI, they could execute arbitrary commands with the user's privileges.
 
Ubuntu: poppler vulnerability  07 August 2007 
Posted by Benjamin D. Thomas   
USN-496-1 fixed a vulnerability in koffice. This update provides the corresponding updates for poppler, the library used for PDF handling in Gnome. Derek Noonburg discovered an integer overflow in the Xpdf function StreamPredictor::StreamPredictor(). By importing a specially crafted PDF file into KWord, this could be exploited to run arbitrary code with the user's privileges.
 
Ubuntu: Qt vulnerability  03 August 2007 
Posted by Benjamin D. Thomas   
Several format string vulnerabilities have been discovered in Qt warning messages. By causing an application to process specially crafted input data which triggered Qt warnings, this could be exploited to execute arbitrary code with the privilege of the user running the application.
 
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