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



Ubuntu: 913-1: libpng vulnerabilities  16 March 2010 
Posted by Benjamin D. Thomas   
It was discovered that libpng did not properly initialize memory whendecoding certain 1-bit interlaced images. If a user or automated systemwere tricked into processing crafted PNG images, an attacker could possiblyuse this flaw to read sensitive information stored in memory. This issueonly affected Ubuntu 6.06 LTS, 8.04 LTS, 8.10 and 9.04. (CVE-2009-2042) [More...]
 
Ubuntu: 907-1: gnome-screensaver vulnerabilities  08 March 2010 
Posted by Benjamin D. Thomas   
It was discovered that gnome-screensaver did not correctly lock all screenswhen monitors get hotplugged. An attacker with physical access could usethis flaw to gain access to a locked session. (CVE-2010-0285) [More...]
 
Ubuntu: 906-1: CUPS vulnerabilities  03 March 2010 
Posted by Benjamin D. Thomas   
It was discovered that the CUPS scheduler did not properly handle certainnetwork operations. A remote attacker could exploit this flaw and cause theCUPS server to crash, resulting in a denial of service. This issue onlyaffected Ubuntu 8.04 LTS, 8.10, 9.04 and 9.10. (CVE-2009-3553,CVE-2010-0302) [More...]
 
Ubuntu: 905-1: sudo vulnerabilities  26 February 2010 
Posted by Benjamin D. Thomas   
It was discovered that sudo did not properly validate the path for the'sudoedit' pseudo-command. A local attacker could exploit this to executearbitrary code as root if sudo was configured to allow the attacker to usesudoedit. The sudoedit pseudo-command is not used in the defaultinstallation of Ubuntu. (CVE-2010-0426) [More...]
 
Ubuntu: 903-1: OpenOffice.org vulnerabilities  24 February 2010 
Posted by Benjamin D. Thomas   
It was discovered that the XML HMAC signature system did not correctly check certain lengths. If an attacker sent a truncated HMAC, it could bypass authentication, leading to potential privilege escalation. (CVE-2009-0217) [More...]
 
Ubuntu: Pidgin vulnerabilities  22 February 2010 
Posted by Benjamin D. Thomas   
Fabian Yamaguchi discovered that Pidgin incorrectly validated all fields of an incoming message in the MSN protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. (CVE-2010-0277)
 
Ubuntu: XML-RPC for C and C++ vulnerabilities  18 February 2010 
Posted by Benjamin D. Thomas   
USN-890-1 fixed vulnerabilities in Expat. This update provides the corresponding updates for XML-RPC for C and C++. Original advisory details: Jukka Taimisto, Tero Rontti and Rauli Kaksonen discovered that Expat did not properly process malformed XML. If a user or application linked against Expat were tricked into opening a crafted XML file, an attacker could cause a denial of service via application crash. (CVE-2009-2625, CVE-2009-3720) It was discovered that Expat did not properly process malformed UTF-8 sequences. If a user or application linked against Expat were tricked into opening a crafted XML file, an attacker could cause a denial of service via application crash. (CVE-2009-3560)
 
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