Vulnerability CVE-2022-31030
Published: 2022-06-09

Description:
containerd is an open source container runtime. A bug was found in the containerd's CRI implementation where programs inside a container can cause the containerd daemon to consume memory without bound during invocation of the `ExecSync` API. This can cause containerd to consume all available memory on the computer, denying service to other legitimate workloads. Kubernetes and crictl can both be configured to use containerd's CRI implementation; `ExecSync` may be used when running probes or when executing processes via an "exec" facility. This bug has been fixed in containerd 1.6.6 and 1.5.13. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used.

Type:

CWE-400

 (Uncontrolled Resource Consumption ('Resource Exhaustion'))

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Linuxfoundation -> Containerd 
Debian -> Debian linux 

 References:
https://github.com/containerd/containerd/security/advisories/GHSA-5ffw-gxpp-mxpf
http://www.openwall.com/lists/oss-security/2022/06/07/1
https://github.com/containerd/containerd/commit/c1bcabb4541930f643aa36a2b38655e131346382
https://www.debian.org/security/2022/dsa-5162
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REOZCUAPCA7NFDWYBDYX6EYXWLHABKBO/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSIGDBHAB3I75JBJNGWEPBTJPS2FOVHD/
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