CVE-2014-2851

Desbordamiento de enteros en la función ping_init_sock en net/ipv4/ping.c en el kernel de Linux hasta 3.14.1 permite a usuarios locales causar una denegación de servicio (uso después de liberación y caída de sistema) o posiblemente ganar privilegios a través de una aplicación manipulada que aprovecha un contador de referencia manejado indebidamente.

A use-after-free flaw was found in the way the ping_init_sock() function of the Linux kernel handled the group_info reference counter. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system.

The kernel packages contain the Linux kernel, the core of any Linux operating system. A use-after-free flaw was found in the way the ping_init_sock() function of the Linux kernel handled the group_info reference counter. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. A NULL pointer dereference flaw was found in the way the futex_wait_requeue_pi() function of the Linux kernel's futex subsystem handled the requeuing of certain Priority Inheritance futexes. A local, unprivileged user could use this flaw to crash the system.