CVE-2019-16884
Publication date 25 September 2019
Last updated 24 July 2024
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| runc | 22.04 LTS jammy |
Fixed 1.0.0~rc8+git20190923.3e425f80-0ubuntu1
|
| 20.04 LTS focal |
Fixed 1.0.0~rc8+git20190923.3e425f80-0ubuntu1
|
|
| 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+esm2
|
|
| 14.04 LTS trusty | Not in release |
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Get Ubuntu ProSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.5 · High
|
| 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 |
References
Related Ubuntu Security Notices (USN)
- USN-4297-1
- runC vulnerabilities
- 9 March 2020
- USN-4867-1
- runC vulnerabilities
- 10 August 2021