CVE-2023-48713 Knative Serving vulnerable to attacker-controlled pod causing denial of service of autoscaler

2023-11-2803:44:59

CWE-400

GitHub_M

www.cve.org

knative serving

dos vulnerability

kubernetes

autoscaler

unbound memory allocation

patch

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

23.6%

JSON

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.

CNA Affected

[
  {
    "vendor": "knative",
    "product": "serving",
    "versions": [
      {
        "version": "< 0.39.0",
        "status": "affected"
      }
    ]
  }
]