CVE-2023-43810
Assigner: GitHub_M
Published: 2023-10-06T13:53:17.622Z
State: PUBLISHED
title: opentelemetry-instrumentation Denial of Service vulnerability due to unbound cardinality metrics
problemTypes: descriptions: cweId: CWE-400
description: CWE-400: Uncontrolled Resource Consumption
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
affected: vendor: open-telemetry
product: opentelemetry-python-contrib
versions: version: < 0.41b0
status: affected
descriptions: value: 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.
source: advisory: GHSA-5rv5-6h4r-h22v
discovery: UNKNOWN