CVE-2011-1768

La implementación de túneles ("tunnels") del kernel de Linux en versiones anteriores a la 2.6.34, si la funcionalidad de túneles está configurada como módulo, permite a atacantes remotos provocar una denegación de servicio (OOPS) enviando un paquete durante la carga del módulo.

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. Various other issues were also addressed.