CVE-2023-28642
Published: 29 March 2023
runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
runc
Launchpad, Ubuntu, Debian |
bionic |
Released
(1.1.4-0ubuntu1~18.04.2)
|
| focal |
Released
(1.1.4-0ubuntu1~20.04.3)
|
|
| jammy |
Released
(1.1.4-0ubuntu1~22.04.3)
|
|
| kinetic |
Released
(1.1.4-0ubuntu1~22.10.3)
|
|
| lunar |
Released
(1.1.4-0ubuntu3.1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(1.1.5+ds1-1)
|
|
| xenial |
Released
(1.0.0~rc7+git20190403.029124da-0ubuntu1~16.04.4+esm4)
Available with Ubuntu Pro |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |