CVE-2011-2494

kernel/taskstats.c del kernel de Linux en versiones anteriores a la 3.1 permite a usuarios locales obtener información confidencial de estadísticas de I/O enviando comandos taskstats al socket netlink, tal como se ha demostrado descubriendo la longitud de la contraseña de otro usuario.

Peter Huewe discovered an information leak in the handling of reading security-related TPM data. A local, unprivileged user could read the results of a previous TPM command. Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. Qianfeng Zhang discovered that the bridge networking interface incorrectly handled certain network packets. A remote attacker could exploit this to crash the system, leading to a denial of service. Various other issues were also addressed.