It was discovered that an integer overflow in the XML UTF-8 decoding code could allow an attacker to bypass cross-site scripting protections. This issue only affected Ubuntu 6.06 LTS, Ubuntu 8.04 LTS, and Ubuntu 9.10. It was discovered that the XML UTF-8 decoding code did not properly handle non-shortest form UTF-8 encoding and ill-formed subsequences in UTF-8 data, which could allow an attacker to bypass cross-site scripting protections. It was discovered that attackers might be able to bypass open_basedir restrictions by passing a specially crafted filename. Maksymilian Arciemowicz discovered that a NULL pointer derefence in the ZIP archive handling code could allow an attacker to cause a denial of service through a specially crafted ZIP archive. This issue only affected Ubuntu 8.04 LTS, Ubuntu 9.10, Ubuntu 10.04 LTS, and Ubuntu 10.10. It was discovered that a stack consumption vulnerability in the filter_var PHP function when in FILTER_VALIDATE_EMAIL mode, could allow a remote attacker to cause a denial of service. This issue only affected Ubuntu 8.04 LTS, Ubuntu 9.10, Ubuntu 10.04 LTS, and Ubuntu 10.10. It was discovered that the mb_strcut function in the Libmbfl library within PHP could allow an attacker to read arbitrary memory within the application process. This issue only affected Ubuntu 10.10. Maksymilian Arciemowicz discovered that an integer overflow in the NumberFormatter::getSymbol function could allow an attacker to cause a denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 10.10. Rick Regan discovered that when handing PHP textual representations of the largest subnormal double-precision floating-point number, the zend_strtod function could go into an infinite loop on 32bit x86 processors, allowing an attacker to cause a denial of service