CVE-2021-30465
Published: 19 May 2021
runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.
Priority
High
CVSS 3 base score: 8.5
Status
| Package | Release | Status |
|---|---|---|
|
runc Launchpad, Ubuntu, Debian |
bionic |
Released
(1.0.0~rc93-0ubuntu1~18.04.2)
|
| focal |
Released
(1.0.0~rc93-0ubuntu1~20.04.2)
|
|
| groovy |
Released
(1.0.0~rc93-0ubuntu1~20.10.2)
|
|
| hirsute |
Released
(1.0.0~rc93-0ubuntu1.1)
|
|
| impish |
Released
(1.0.0~rc93-0ubuntu2)
|
|
| jammy |
Released
(1.0.0~rc93-0ubuntu2)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(1.0.0-rc95)
|
|
| xenial |
Ignored
(end of standard support, was needed)
|
Notes
| Author | Note |
|---|---|
| mdeslaur | 1.0.0-rc94 is also affected |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30465
- https://github.com/opencontainers/runc/security/advisories/GHSA-c3xm-pvg7-gh7r
- https://ubuntu.com/security/notices/USN-4960-1
- NVD
- Launchpad
- Debian