Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-21334 |
CWE-ID | CWE-399 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
Fedora Operating systems & Components / Operating system containerd Operating systems & Components / Operating system package or component |
Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU51242
Risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-21334
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows an attacker to gain access to potentially sensitive information.
The vulnerability exists due to incorrect management of internal resources. Containers launched through containerd's CRI implementation (through Kubernetes, crictl, or any other pod/container client that uses the containerd CRI service) that share the same image may receive incorrect environment variables, including values that are defined for other containers. If the affected containers have different security contexts, this may allow sensitive information to be unintentionally shared. MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 33
containerd: before 1.4.4-1.fc33
CPE2.3http://bodhi.fedoraproject.org/updates/FEDORA-2021-470fa24f5b
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.