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CVE-2019-16884

Published: 25 September 2019

runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory.

From the Ubuntu security team

It was discovered that runC incorrectly implemented AppArmor restrictions. An attacker could possibly use this issue to mount malicious images.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
runc
Launchpad, Ubuntu, Debian
bionic
Released (1.0.0~rc10-0ubuntu1~18.04.2)
disco Ignored
(reached end-of-life)
eoan
Released (1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
focal
Released (1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
groovy
Released (1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
hirsute
Released (1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
impish
Released (1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
jammy
Released (1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
precise Does not exist

trusty Does not exist

upstream
Released (1.0.0~rc9)
xenial Ignored
(end of standard support, was needed)