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CVE-2022-21698 (High) detected in github.com/prometheus/client_golang-v1.10.0 - autoclosed

mend-bolt-for-github opened this issue · 1 comments

mend-bolt-for-github commented

CVE-2022-21698 - High Severity Vulnerability

Vulnerable Library - github.com/prometheus/client_golang-v1.10.0

Prometheus instrumentation library for Go applications

Dependency Hierarchy:

  • ❌ github.com/prometheus/client_golang-v1.10.0 (Vulnerable Library)

Found in base branch: main

Vulnerability Details

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.

Publish Date: 2022-02-15

URL: CVE-2022-21698

CVSS 3 Score Details (7.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-cg3q-j54f-5p7p

Release Date: 2022-02-15

Fix Resolution: v1.11.1

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mend-bolt-for-github commented

✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.