CVE-2023-48713

Knative Serving vulnerable to attacker-controlled pod causing denial of service of autoscaler

Description

Knative Serving builds on Kubernetes to support deploying and serving of applications and functions as serverless containers. An attacker who controls a pod to a degree where they can control the responses from the /metrics endpoint can cause Denial-of-Service of the autoscaler from an unbound memory allocation bug. This is a DoS vulnerability, where a non-privileged Knative user can cause a DoS for the cluster. This issue has been patched in version 0.39.0.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Third-Party Advisory github.com
Affected: knative serving
Published at:
Updated at:

References

Link Tags
https://github.com/knative/serving/security/advisories/GHSA-qmvj-4qr9-v547 third party advisory
https://github.com/knative/serving/commit/012ee2509231b80b7842139bfabc30516d3026ca patch
https://github.com/knative/serving/commit/101f814112b9ca0767f457e7e616b46205551cf1 patch
https://github.com/knative/serving/commit/fff40ef7bac9be8380ec3d1c70fc15b57093382a patch

Frequently Asked Questions

What is the severity of CVE-2023-48713?
CVE-2023-48713 has been scored as a medium severity vulnerability.
How to fix CVE-2023-48713?
To fix CVE-2023-48713, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-48713 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-48713 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-48713?
CVE-2023-48713 affects knative serving.
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