CVE-2019-19921
Publication date 12 February 2020
Last updated 24 July 2024
Ubuntu priority
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.)
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| runc | ||
| 22.04 LTS jammy |
Fixed 1.0.0~rc10-0ubuntu1
|
|
| 20.04 LTS focal |
Fixed 1.0.0~rc10-0ubuntu1
|
|
| 18.04 LTS bionic |
Fixed 1.0.0~rc10-0ubuntu1~18.04.2
|
|
| 16.04 LTS xenial |
Fixed 1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4
|
|
| 14.04 LTS trusty | Not in release |
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| Package | Patch details |
|---|---|
| runc |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.0 · High
|
| 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
Related Ubuntu Security Notices (USN)
- USN-4297-1
- runC vulnerabilities
- 9 March 2020
- USN-6088-2
- runC vulnerabilities
- 23 May 2023