Resource exhaustion in Containerd
CVE-2022-31030
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Containerd — versions < 1.5.13, >= 1.6.0, < 1.6.6
- Linuxfoundation Containerd
- Debian Linux — versions 11.0
- Fedoraproject Fedora — versions 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/containerd/containerd/security/advisories/GHSA-5ffw-gxpp-mxpf (Third Party Advisory)
- github.com/containerd/containerd/commit/c1bcabb4541930f643aa36a2b38655e131346382 (Product, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/06/07/1 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5162 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202401-31 (vendor-advisory)
Frequently asked questions
- What is CVE-2022-31030?
- CVE-2022-31030 is a medium-severity vulnerability in Containerd, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2022-06-09.
- How severe is CVE-2022-31030?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-31030 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.