CVE-2011-1080

La función de do_replace en net/bridge/netfilter/ebtables.c en versiones del kernel de Linux anteriores a v2.6.39 no garantiza que un nombre de campo determinado termine con un '\0', lo que permite a usuarios locales obtener información sensible de la pila del kernel aprovechandose de la capacidad CAP_NET_ADMIN para reemplazar a una tabla y luego leer una línea de comandos modprobe.

It was discovered that KVM did not correctly initialize certain CPU registers. A local attacker could exploit this to crash the system, leading to a denial of service. Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. Various other issues were also addressed.