Information disclosure in Knative Func
CVE-2022-41939
knative.dev/func is is a client library and CLI enabling the development and deployment of Kubernetes functions. Developers using a malicious or compromised third-party buildpack could expose their registry credentials or local docker socket to a malicious `lifecycle` container. This issues has been patched in PR #1442, and is part of release 1.8.1. This issue only affects users who are using function buildpacks from third-parties; pinning the builder image to a specific content-hash with a valid `lifecycle` image will also mitigate the attack.
Vulnerability class: Information Disclosure
EPSS: 0.009 (56.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N.
Affected products
- Knative Func — versions < 1.8.1
- Linuxfoundation Knative_func
Weakness classification (CWE)
References
- security-advisories@github.com (Exploit, Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-41939?
- CVE-2022-41939 is a medium-severity vulnerability in Knative Func, classified under Information Disclosure. CVSS score: 6.1/10. Published 2022-11-19.
- How severe is CVE-2022-41939?
- Medium severity. CVSS v3 base score is 6.1 out of 10.