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=========================================================== Ubuntu Security Notice USN-375-1 November 02, 2006 php5 vulnerability CVE-2006-5465, CVE-2006-5706 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 5.10 Ubuntu 6.06 LTS Ubuntu 6.10 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 5.10: libapache2-mod-php5 5.0.5-2ubuntu1.6 php5-cli 5.0.5-2ubuntu1.6 Ubuntu 6.06 LTS: libapache2-mod-php5 5.1.2-1ubuntu3.4 php5-cli 5.1.2-1ubuntu3.4 Ubuntu 6.10: libapache2-mod-php5 5.1.6-1ubuntu2.1 php5-cli 5.1.6-1ubuntu2.1 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Stefan Esser discovered two buffer overflows in the htmlentities() and htmlspecialchars() functions. By supplying specially crafted input to PHP applications which process that input with these functions, a remote attacker could potentially exploit this to execute arbitrary code with the privileges of the application. (CVE-2006-5465) This update also fixes bugs in the chdir() and tempnam() functions, which did not perform proper open_basedir checks. This could allow local scripts to bypass intended restrictions.