CVE-2011-1598

La función bcm_release en net/can/bcm.c del kernel de linux en versiones anteriores a v2.6.39-rc6 no valida correctamente una estructura de toma de datos, lo cual permite a usuarios locales causar una denegación de servicio ( desreferenciar un puntero NULL ) o posiblemente tener un impacto no especificado a través de una operación de liberación manipulada.

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.