CVE-2023-43810

2023-10-0614:15:12

CWE-400

[email protected]

web.nvd.nist.gov

cve-2023-43810

opentelemetry

otel

observability framework

telemetry data

traces

metrics

logs

autoinstrumentation

memory exhaustion

security patch

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

21.4%

JSON

OpenTelemetry, also known as OTel for short, is a vendor-neutral open-source Observability framework for instrumenting, generating, collecting, and exporting telemetry data such as traces, metrics, logs. Autoinstrumentation out of the box adds the label http_method that has unbound cardinality. It leads to the server’s potential memory exhaustion when many malicious requests are sent. HTTP method for requests can be easily set by an attacker to be random and long. In order to be affected program has to be instrumented for HTTP handlers and does not filter any unknown HTTP methods on the level of CDN, LB, previous middleware, etc. This issue has been patched in version 0.41b0.

Affected configurations

Vulners

NVD

Node

open-telemetryopentelemetry_python_contribRange<0.41b0

CPENameOperatorVersion
opentelemetry:opentelemetryopentelemetrylt0.41b0

CPE	Name	Operator	Version
opentelemetry:opentelemetry	opentelemetry	lt	0.41b0

CNA Affected

[
  {
    "vendor": "open-telemetry",
    "product": "opentelemetry-python-contrib",
    "versions": [
      {
        "version": "< 0.41b0",
        "status": "affected"
      }
    ]
  }
]