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Ubuntu: 1102-1: tiff vulnerability  04 April 2011 
Posted by Benjamin D. Thomas   
Martin Barbella discovered that the thunder (aka ThunderScan) decoder inthe TIFF library incorrectly handled an unexpected BitsPerSample value. Ifa user or automated system were tricked into opening a specially craftedTIFF image, a remote attacker could execute arbitrary code with userprivileges, or crash the application, leading to a denial of service. [More...]
Ubuntu: 1101-1: Qt vulnerabilities  01 April 2011 
Posted by Benjamin D. Thomas   
It was discovered that several invalid HTTPS certificates were issued andrevoked. An attacker could exploit these to perform a man in the middleattack to view sensitive information or alter encrypted communications.These were placed on the certificate blacklist to prevent their misuse. [More...]
Ubuntu: 1100-1: OpenLDAP vulnerabilities  31 March 2011 
Posted by Benjamin D. Thomas   
It was discovered that OpenLDAP did not properly check forwardedauthentication failures when using a slave server and chain overlay. IfOpenLDAP were configured in this manner, an attacker could bypassauthentication checks by sending an invalid password to a slave server.(CVE-2011-1024) [More...]
Ubuntu: 1099-1: GDM vulnerability  30 March 2011 
Posted by Benjamin D. Thomas   
Sebastian Krahmer discovered that GDM (GNOME Display Manager) did notproperly drop privileges when handling the cache directories usedto store users' dmrc and face icon files. This could allow a localattacker to change the ownership of arbitrary files, thereby gainingroot privileges. [More...]
Ubuntu: 1095-1: Quagga vulnerabilities  29 March 2011 
Posted by Benjamin D. Thomas   
It was discovered that Quagga incorrectly parsed certain malformed extendedcommunities. A remote attacker could use this flaw to cause Quagga tocrash, resulting in a denial of service. (CVE-2010-1674) [More...]
Ubuntu: 1094-1: Libvirt vulnerability  29 March 2011 
Posted by Benjamin D. Thomas   
Petr Matousek discovered that libvirt did not always honor read-onlyconnections. An attacker who is authorized to connect to the libvirt daemoncould exploit this to cause a denial of service via application crash. [More...]
Ubuntu: 1092-1: Linux Kernel vulnerabilities  25 March 2011 
Posted by Benjamin D. Thomas   
Dan Rosenberg discovered that multiple terminal ioctls did not correctlyinitialize structure memory. A local attacker could exploit this to readportions of kernel stack memory, leading to a loss of privacy.(CVE-2010-4076, CVE-2010-4077) [More...]
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