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Ubuntu: Pango vulnerability  07 May 2009 
Posted by Benjamin D. Thomas   
Will Drewry discovered that Pango incorrectly handled rendering text with long glyphstrings. If a user were tricked into displaying specially crafted data with applications linked against Pango, such as Firefox, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program.
 
Ubuntu: libwmf vulnerability  04 May 2009 
Posted by Benjamin D. Thomas   
Tavis Ormandy discovered that libwmf incorrectly used memory after it had been freed when using its embedded GD library. If a user or automated system were tricked into opening a crafted WMF file, an attacker could cause a denial of service or execute arbitrary code with privileges of the user invoking the program.
 
Ubuntu: PHP vulnerabilities  27 April 2009 
Posted by Benjamin D. Thomas   
USN-761-1 fixed vulnerabilities in PHP. This update provides the corresponding updates for Ubuntu 9.04. Original advisory details: It was discovered that PHP did not sanitize certain error messages when display_errors is enabled, which could result in browsers becoming vulnerable to cross-site scripting attacks when processing the output. With cross-site scripting vulnerabilities, if a user were tricked into viewing server 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. (CVE-2008-5814) It was discovered that PHP did not properly handle certain malformed strings when being parsed by the json_decode function. A remote attacker could exploit this flaw and cause the PHP server to crash, resulting in a denial of service. This issue only affected Ubuntu 8.04 and 8.10. (CVE-2009-1271)
 
Ubuntu: acpid vulnerability  27 April 2009 
Posted by Benjamin D. Thomas   
It was discovered that acpid did not properly handle a large number of connections. A local user could exploit this and monopolize CPU resources, leading to a denial of service.
 
Ubuntu: FreeType vulnerability  27 April 2009 
Posted by Benjamin D. Thomas   
Tavis Ormandy discovered that FreeType did not correctly handle certain large values in font files. If a user were tricked into using a specially crafted font file, a remote attacker could execute arbitrary code with user privileges.
 
Ubuntu: PHP vulnerabilities  23 April 2009 
Posted by Benjamin D. Thomas   
It was discovered that PHP did not sanitize certain error messages when display_errors is enabled, which could result in browsers becoming vulnerable to cross-site scripting attacks when processing the output. With cross-site scripting vulnerabilities, if a user were tricked into viewing server 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. (CVE-2008-5814) It was discovered that PHP did not properly handle the mbstring.func_overload setting within .htaccess files when using virtual hosts. A virtual host administrator could use this flaw to cause settings to be applied to other virtual hosts on the same server. (CVE-2009-0754) It was discovered that PHP did not properly handle certain malformed strings when being parsed by the json_decode function. A remote attacker could exploit this flaw and cause the PHP server to crash, resulting in a denial of service. This issue only affected Ubuntu 8.04 and 8.10. (CVE-2009-1271)
 
Ubuntu: xine-lib vulnerabilities  23 April 2009 
Posted by Benjamin D. Thomas   
It was discovered that the QT demuxer in xine-lib did not correctly handle a large count value in an STTS atom, resulting in a heap-based buffer overflow. If a user or automated system were tricked into opening a specially crafted MOV file, an attacker could execute arbitrary code as the user invoking the program. (CVE-2009-1274) USN-746-1 provided updated xine-lib packages to fix multiple security vulnerabilities. The security patch to fix CVE-2009-0698 was incomplete. This update corrects the problem. Original advisory details: It was discovered that the 4xm demuxer in xine-lib did not correctly handle a large current_track value in a 4xm file, resulting in an integer overflow. If a user or automated system were tricked into opening a specially crafted 4xm movie file, an attacker could crash xine-lib or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-0698)
 
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