Docker Engine before 1.6.1 uses weak permissions for (1) /proc/asound (2) /proc/timer_stats (3) /proc/latency_stats and (4) /proc/fs which allows local users to modify the host obtain sensitive information and perform protocol downgrade attacks via a crafted image.

...

CVE-2017-5967

The time subsystem in the Linux kernel, when CONFIGTIMERSTATS is enabled, allows local users to discover real PID values as distinguished from PID values inside a PID namespace by reading the /proc/timerlist file, related to the printtimer function in kernel/time/timerlist.c and the...

CVE-2015-3630: Undefined Security Weakness

Docker Engine before 1.6.1 uses weak permissions for 1 /proc/asound, 2 /proc/timerstats, 3 /proc/latencystats, and 4 /proc/fs, which allows local users to modify the host, obtain sensitive information, and perform protocol downgrade attacks via a crafted image...