CVE-2019-19921
Published: 12 February 2020
runc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. (This vulnerability does not affect Docker due to an implementation detail that happens to block the attack.)
Priority
Status
Package | Release | Status |
---|---|---|
runc Launchpad, Ubuntu, Debian |
bionic |
Released
(1.0.0~rc10-0ubuntu1~18.04.2)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(1.0.0~rc10-0ubuntu1~19.10.2)
|
|
focal |
Released
(1.0.0~rc10-0ubuntu1)
|
|
groovy |
Released
(1.0.0~rc10-0ubuntu1)
|
|
hirsute |
Released
(1.0.0~rc10-0ubuntu1)
|
|
impish |
Released
(1.0.0~rc10-0ubuntu1)
|
|
jammy |
Released
(1.0.0~rc10-0ubuntu1)
|
|
kinetic |
Released
(1.0.0~rc10-0ubuntu1)
|
|
lunar |
Released
(1.0.0~rc10-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(1.0.0~rc10)
|
|
xenial |
Released
(1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4)
Available with Ubuntu Pro |
|
Patches: upstream: https://github.com/opencontainers/runc/pull/2207/commits/3291d66b98445bd7f7d02eac7f2bca2ac2c56942 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.0 |
Attack vector | Local |
Attack complexity | High |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
- https://github.com/opencontainers/runc/pull/2190
- https://github.com/opencontainers/runc/pull/2207
- https://gist.github.com/LiveOverflow/c937820b688922eb127fb760ce06dab9
- https://ubuntu.com/security/notices/USN-4297-1
- https://ubuntu.com/security/notices/USN-6088-2
- https://www.cve.org/CVERecord?id=CVE-2019-19921
- NVD
- Launchpad
- Debian