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
Status
Package | Release | Status |
---|---|---|
runc Launchpad, Ubuntu, Debian |
impish |
Released
(1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
|
groovy |
Released
(1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
|
|
jammy |
Released
(1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
|
|
bionic |
Released
(1.0.0~rc10-0ubuntu1~18.04.2)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
|
|
focal |
Released
(1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
|
|
hirsute |
Released
(1.0.0~rc8+git20190923.3e425f80-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(1.0.0~rc9)
|
|
xenial |
Released
(1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm2)
Available with Ubuntu Pro |
|
Patches: upstream: https://github.com/opencontainers/runc/commit/331692baa7afdf6c186f8667cb0e6362ea0802b3 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | High |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |