CVE-2021-42343

Summary

CVECVE-2021-42343
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-26 11:15:00 UTC
Updated2022-07-12 17:42:00 UTC
DescriptionAn issue was discovered in the Dask distributed package before 2021.10.0 for Python. Single machine Dask clusters started with dask.distributed.LocalCluster or dask.distributed.Client (which defaults to using LocalCluster) would mistakenly configure their respective Dask workers to listen on external interfaces (typically with a randomly selected high port) rather than only on localhost. A Dask cluster created using this method (when running on a machine that has an applicable port exposed) could be used by a sophisticated attacker to achieve remote code execution.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Anaconda Dask All All All All
Application Anaconda Dask All All All All

References

ReferenceSourceLinkTags
Changelog — Dask documentation MISC docs.dask.org
Tags · dask/dask · GitHub MISC github.com
Workers for local Dask clusters mistakenly listened on public interfaces · Advisory · dask/distributed · GitHub CONFIRM github.com
Releases · dask/dask · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 179842 Debian Security Update for dask.distributed (CVE-2021-42343)
  • 502339 Alpine Linux Security Update for py3-dask
  • 505280 Alpine Linux Security Update for py3-dask
  • 980095 Python (pip) Security Update for dask (GHSA-j8fq-86c5-5v2r)

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