Security features bypass in containerd
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-30465 |
| CWE-ID | CWE-254 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software |
containerd Other software / Other software solutions |
| Vendor | containerd |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Security features bypass
EUVDB-ID: #VU53399
Risk: Low
CVSSv4.0: 4.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-30465
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the security features bypass issue. A remote authenticated attacker on the local network can perform a symlink exchange attack and host filesystem being bind-mounted into the container.
MitigationInstall update from vendor's website.
Vulnerable software versionscontainerd: 1.4.0 - 1.5.1
CPE2.3- cpe:2.3:a:containerd:containerd:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:containerd:containerd:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:containerd:containerd:1.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:containerd:containerd:1.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:containerd:containerd:1.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:containerd:containerd:1.4.5:*:*:*:*:*:*:*
- cpe:2.3:a:containerd:containerd:1.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:containerd:containerd:1.5.1:*:*:*:*:*:*:*
https://github.com/containerd/containerd/releases/tag/v1.5.2
https://github.com/containerd/containerd/releases/tag/v1.4.6
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
