CVE-2015-1334

attach.c en LXC 1.1.2 y en versiones anteriores utiliza el sistema de archivos proc en un contenedor, lo que permite a usuarios del contenedor local escapar del confinamiento AppArmor o SELinux montando un sistema de archivos proc con un (1) perfil AppArmor o (2) una etiqueta SELinux manipulados.

Roman Fiedler discovered that LXC had a directory traversal flaw when creating lock files. A local attacker could exploit this flaw to create an arbitrary file as the root user. Roman Fiedler discovered that LXC incorrectly trusted the container's proc filesystem to set up AppArmor profile changes and SELinux domain transitions. A local attacker could exploit this flaw to run programs inside the container that are not confined by AppArmor or SELinux. Various other issues were also addressed.