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=========================================================== Ubuntu Security Notice USN-824-1 August 24, 2009 php5 vulnerability CVE-2009-2687 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 8.04 LTS Ubuntu 8.10 Ubuntu 9.04 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: php5-cgi 5.1.2-1ubuntu3.15 php5-cli 5.1.2-1ubuntu3.15 Ubuntu 8.04 LTS: php5-cgi 5.2.4-2ubuntu5.7 php5-cli 5.2.4-2ubuntu5.7 Ubuntu 8.10: php5-cgi 5.2.6-2ubuntu4.3 php5-cli 5.2.6-2ubuntu4.3 Ubuntu 9.04: php5-cgi 5.2.6.dfsg.1-3ubuntu4.2 php5-cli 5.2.6.dfsg.1-3ubuntu4.2 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: It was discovered that PHP did not properly handle certain malformed JPEG images when being parsed by the Exif module. A remote attacker could exploit this flaw and cause the PHP server to crash, resulting in a denial of service.