Resource exhaustion in Kubeedge
CVE-2022-31073
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. Prior to versions 1.11.1, 1.10.2, and 1.9.4, the ServiceBus server on the edge side may be susceptible to a DoS attack if an HTTP request containing a very large Body is sent to it. It is possible for the node to be exhausted of memory. The consequence of the exhaustion is that other services on the node, e.g. other containers, will be unable to allocate memory and thus causing a denial of service. Malicious apps accidentally pulled by users on the host and have the access to send HTTP requests to localhost may make an attack. It will be affected only when users enable the `ServiceBus` module in the config file `edgecore.yaml`. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. As a workaround, disable the `ServiceBus` module in the config file `edgecore.yaml`.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.017 (75.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.017 · change: +0.001
Affected products
- Kubeedge — versions < 1.9.4, >= 1.10.0, < 1.10.2, = 1.11.0
- Linuxfoundation Kubeedge
Weakness classification (CWE)
References
- github.com/kubeedge/kubeedge/security/advisories/GHSA-vwm6-qc77-v2rh (Exploit, Third Party Advisory)
- github.com/kubeedge/kubeedge/pull/4038 (Patch, Third Party Advisory, Issue Tracking)
- github.com/kubeedge/kubeedge/pull/4039 (Patch, Third Party Advisory, Issue Tracking)
- github.com/kubeedge/kubeedge/pull/4042 (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2022-31073?
- CVE-2022-31073 is a medium-severity vulnerability in Kubeedge, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2022-07-11.
- How severe is CVE-2022-31073?
- Medium severity. CVSS v3 base score is 6.5 out of 10.