CVE-2019-19921
Race condition in github.com/opencontainers/runc
5.9
MEDIUM
CVSS 3.1
EPSS 0.19%
Description
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.)
How to fix CVE-2019-19921
To remediate CVE-2019-19921, upgrade the affected package to a fixed version below.
- —upgrade to 1.0.0~rc10+dfsg1-1 or later
- —upgrade to 1.0.0-rc9.0.20200122160610-2fc03cc11c77 or later
- —upgrade to 1.0.0-rc9.0.20200122160610-2fc03cc11c77 or later
Is CVE-2019-19921 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.0.0~rc10+dfsg1-1
- from 0, < 1.0.0-rc9.0.20200122160610-2fc03cc11c77
- from 0, < 1.0.0-rc9.0.20200122160610-2fc03cc11c77
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:U |