CVE-2008-3142

Múltiples desbordamientos de búfer en Python 2.5.2 y anteriores en plataformas de 32bit. Permite a atacantes dependientes de contexto causar denegación de servicio (crash) o tener otros impactos no especificados a través de una cadena larga que conduce a una asignación incorrecta de memoria durante el procesamiento de la cadena Unicode, relacionado con la función unicode_resize y el macro PyMem_RESIZE.

Multiple integer overflows in the imageop module in Python prior to 2.5.3 allowed context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted images that trigger heap-based buffer overflows. to an incomplete fix for CVE-2007-4965. David Remahl of Apple Product Security reported several integer overflows in a number of core modules. reported an integer overflow in the hashlib module on Python 2.5 that lead to unreliable cryptographic digest results. Justin Ferguson reported multiple buffer overflows in unicode string processing that affected 32bit systems. Multiple integer overflows were reported by the Google Security Team that had been fixed in Python 2.5.2. Justin Ferguson reported a number of integer overflows and underflows in the PyOS_vsnprintf() function, as well as an off-by-one error when passing zero-length strings, that led to memory corruption. The updated packages have been patched to correct these issues. As well, Python packages on Mandriva Linux 2007.1 and 2008.0 have been updated to version 2.5.2. Due to slight packaging changes on Mandriva Linux 2007.1, a new package is available (tkinter-apps) that contains binary files (such as /usr/bin/idle) that were previously in the tkinter package.