vulnerability
Amazon Linux AMI 2: CVE-2021-30465: Security patch for runc (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:S/C:P/I:P/A:P) | May 27, 2021 | Jul 4, 2022 | May 20, 2026 |
Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
May 27, 2021
Added
Jul 4, 2022
Modified
May 20, 2026
Description
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.
Solutions
amazon-linux-ami-2-upgrade-runcamazon-linux-ami-2-upgrade-runc-debuginfo
References
- AMAZON-AL2/ALAS2DOCKER-2021-008
- AMAZON-AL2/ALAS2ECS-2025-062
- AMAZON-AL2/ALAS2NITRO-ENCLAVES-2021-008
- AMAZON-AL2/ALASDOCKER-2021-008
- AMAZON-AL2/ALASECS-2025-062
- AMAZON-AL2/ALASNITRO-ENCLAVES-2021-008
- CVE-2021-30465
- https://attackerkb.com/topics/CVE-2021-30465
- CWE-362
- EUVD-EUVD-2021-1034
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-1034
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.