Vulnerability Details : CVE-2022-41939
Potential exploit
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 category: Information leak
Products affected by CVE-2022-41939
- cpe:2.3:a:linuxfoundation:knative_func:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-41939
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-41939
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.4
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N |
2.8
|
4.0
|
NIST | |
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N |
1.6
|
4.0
|
GitHub, Inc. |
CWE ids for CVE-2022-41939
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: security-advisories@github.com (Primary)
References for CVE-2022-41939
-
https://github.com/knative/func/pull/1442
fix(GHSA-5336-2g3f-9g3m): Fixes GSA GHSA-5336-2g3f-9g3m by lance · Pull Request #1442 · knative/func · GitHubPatch;Third Party Advisory
-
https://github.com/knative/func/blob/5ca77d38744d3481cc0b795f607c5859b19588fc/buildpacks/builder.go#L37-L41
func/builder.go at 5ca77d38744d3481cc0b795f607c5859b19588fc · knative/func · GitHubThird Party Advisory
-
https://github.com/knative/func/releases/tag/knative-v1.8.1
Release Knative Func release v1.8.1 · knative/func · GitHubRelease Notes;Third Party Advisory
-
https://github.com/knative/func/security/advisories/GHSA-5336-2g3f-9g3m
Potential local compromise when running third-party builders · Advisory · knative/func · GitHubExploit;Patch;Third Party Advisory
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