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Ubuntu: pwlib vulnerability  09 January 2008 
Posted by Benjamin D. Thomas   
Jose Miguel Esparza discovered that pwlib did not correctly handle large string lengths. A remote attacker could send specially crafted packets to applications linked against pwlib (e.g. Ekiga) causing them to crash, leading to a denial of service.
 
Ubuntu: opal vulnerability  09 January 2008 
Posted by Benjamin D. Thomas   
Jose Miguel Esparza discovered that certain SIP headers were not correctly validated. A remote attacker could send a specially crafted packet to an application linked against opal (e.g. Ekiga) causing it to crash, leading to a denial of service.
 
Ubuntu: Tomboy vulnerability  07 January 2008 
Posted by Benjamin D. Thomas   
Jan Oravec discovered that Tomboy did not properly setup the LD_LIBRARY_PATH environment variable. A local attacker could exploit this to execute arbitrary code as the user invoking the program.
 
Ubuntu: Linux kernel vulnerabilities  18 December 2007 
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. (CVE-2006-6058) Certain calculations in the hugetlb code were not correct. A local attacker could exploit this to cause a kernel panic, leading to a denial of service.
 
Ubuntu: Samba vulnerability  18 December 2007 
Posted by Benjamin D. Thomas   
Alin Rad Pop discovered that Samba did not correctly check the size of reply packets to mailslot requests. If a server was configured with domain logon enabled, an unauthenticated remote attacker could send a specially crafted domain logon packet and execute arbitrary code or crash the Samba service. By default, domain logon is disabled in Ubuntu.
 
Ubuntu: Cairo regression  12 December 2007 
Posted by Benjamin D. Thomas   
USN-550-1 fixed vulnerabilities in Cairo. A bug in font glyph rendering was uncovered as a result of the new memory allocation routines. In certain situations, fonts containing characters with no width or height would not render any more. This update fixes the problem. We apologize for the inconvenience.
 
Ubuntu: Cairo regression  10 December 2007 
Posted by Benjamin D. Thomas   
Peter Valchev discovered that Cairo did not correctly decode PNG image data. By tricking a user or automated system into processing a specially crafted PNG with Cairo, a remote attacker could execute arbitrary code with user privileges.
 
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