CVE-2011-1083

La implementación epoll en el Kernel de Linux v2.6.37.2 y anteriores no cruza un árbol de descriptores de fichero epoll adecuadamente, lo que permite a usuarios locales provocar una denegación de servicio (consumo de CPU) a través de una aplicación manipulada que hace epoll_create y llamadas al sistema epoll_ctl.

Dan Rosenberg discovered that IRDA did not correctly check the size of buffers. On non-x86 systems, a local attacker could exploit this to read kernel heap memory, leading to a loss of privacy. Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit. Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. Various other issues were also addressed.