CVE-2011-4566

Un desbordamiento de entero en la función exif_process_IFD_TAG en el fichero exif.c de la extensión exif de PHP v5.4.0 beta2 en las plataformas de 32 bits permite a atacantes remotos leer los contenidos de ubicaciones de memoria aleatorias o causar una denegación de servicio a través de un valor de offset_val concreto en una cabecera EXIF en un archivo JPEG. Se trata de una vulnerabilidad diferente a CVE-2.011-0708.

OS X Lion v10.7.4 and Security Update 2012-002 is now available and addresses multiple security issues. An issue existed in the handling of network account logins. The login process recorded sensitive information in the system log, where other users of the system could read it. A temporary file race condition issue existed in blued's initialization routine. There are known attacks on the confidentiality of SSL 3.0 and TLS 1.0 when a cipher suite uses a block cipher in CBC mode. curl disabled the 'empty fragment' countermeasure which prevented these attacks. This issue is addressed by enabling empty fragments. A data injection issue existed in curl's handling of URLs. This issue is addressed through improved validation of URLs. This issue does not affect systems prior to OS X Lion. Various other vulnerabilities have been addressed.