LXD before 2.0.2 uses world-readable permissions for /var/lib/lxd/zfs.img when setting up a loop based ZFS pool, which allows local users to copy and read data from arbitrary containers via unspecified vectors.
LXD en versiones anteriores a 2.0.2 usa permisos world-readable para /var/lib/lxd/zfs.img al configurar una agrupación ZFS en bucle, lo que permite a usuarios locales copiar y leer información de contenedores arbitrarios a través de vectores no especificados.
Robie Basak discovered that LXD incorrectly set permissions when setting up a loop based ZFS pool. A local attacker could use this issue to copy and read the data of any LXD container. Robie Basak discovered that LXD incorrectly set permissions when switching an unprivileged container into privileged mode. A local attacker could use this issue to access any world readable path in the container directory, including setuid binaries. Various other issues were also addressed.
