CVE-2009-3725

La capa de conector en el kernel Linux versiones anteriores a v2.6.31.5 no requiere de la capacidad CAP_SYS_ADMIN para ciertas interacciones de los subsistemas (1) uvesafb, (2) pohmelfs, (3) dst, o (4) dm, permitiendo a usuarios locales saltar las restricciones de acceso implementadas y obtener privilegios mediante peticiones a las funciones en esos subsistemas.

Kernel packages have been updated. It was discovered that the AX.25 network subsystem did not correctly check integer signedness in certain setsockopt calls. Jan Beulich discovered that the kernel could leak register contents to 32-bit processes that were switched to 64-bit mode. Dave Jones discovered that the gdth SCSI driver did not correctly validate array indexes in certain ioctl calls. Eric Dumazet and Jiri Pirko discovered that the TC and CLS subsystems would leak kernel memory via uninitialized structure members. Earl Chew discovered race conditions in pipe handling. There are about a dozen other issues also addressed.