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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-21698 Detail

Description

client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an instrumented software must use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`; not filter any specific methods (e.g GET) before middleware; pass metric with `method` label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown `method`. client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including removing the `method` label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/prometheus/client_golang/pull/962 Patch  Third Party Advisory 
https://github.com/prometheus/client_golang/pull/962 Patch  Third Party Advisory 
https://github.com/prometheus/client_golang/pull/987 Patch  Third Party Advisory 
https://github.com/prometheus/client_golang/pull/987 Patch  Third Party Advisory 
https://github.com/prometheus/client_golang/releases/tag/v1.11.1 Release Notes  Third Party Advisory 
https://github.com/prometheus/client_golang/releases/tag/v1.11.1 Release Notes  Third Party Advisory 
https://github.com/prometheus/client_golang/security/advisories/GHSA-cg3q-j54f-5p7p Issue Tracking  Third Party Advisory 
https://github.com/prometheus/client_golang/security/advisories/GHSA-cg3q-j54f-5p7p Issue Tracking  Third Party Advisory 
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Weakness Enumeration

CWE-ID CWE Name Source
CWE-770 Allocation of Resources Without Limits or Throttling cwe source acceptance level NIST  
CWE-400 Uncontrolled Resource Consumption GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

21 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-21698
NVD Published Date:
02/15/2022
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.