CVE-2018-9568

En sk_clone_lock en sock.c, hay una posible corrupción de memoria debido a una confusión de tipos. Esto podría llevar a un escalado de privilegios local sin necesitar privilegios de ejecución adicionales. No se necesita interacción del usuario para explotarlo. Producto: Android. Versiones: Android kernel. Android ID: A-113509306. Referencias: Upstream kernel.

A possible memory corruption due to a type confusion was found in the Linux kernel in the sk_clone_lock() function in the net/core/sock.c. The possibility of local escalation of privileges cannot be fully ruled out for a local unprivileged attacker.

It was discovered that the CIFS client implementation in the Linux kernel did not properly handle setup negotiation during session recovery, leading to a NULL pointer exception. An attacker could use this to create a malicious CIFS server that caused a denial of service. Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. Various other issues were also addressed.