CVE-2018-16848: OpenStack Mistral DoS

CVE-2018-16848 · Severity: low · CVSS 3.1 · Published 2020-06-15

A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.

Technologies: mistral (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2018-16848 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2018-16848 being exploited in the wild.
How severe is CVE-2018-16848?
Low severity, with a CVSS score of 3.1, published 15 June 2020.
Which products and versions are affected?
mistral (PyPI) ECOSYSTEM:introduced=0,fixed=10.0.0, ECOSYSTEM:introduced=0,fixed=7.0.4.
Is there a fix for CVE-2018-16848?
Yes. mistral (PyPI): upgrade to 10.0.0, 7.0.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2018-16848?
Check whether you run mistral (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • mistral (PyPI): upgrade to 10.0.0, 7.0.4 or later
    pip install "mistral>=10.0.0"

Affected products

  • mistral (PyPI) ECOSYSTEM:introduced=0,fixed=10.0.0, ECOSYSTEM:introduced=0,fixed=7.0.4

Identifiers

  • CVE-2018-16848
  • GHSA-443j-6p7g-6v4w
  • PYSEC-2020-240

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