Vulnerability in Anaconda Dask
CVE-2021-42343
An 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (86.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
References
- docs.dask.org/en/latest/changelog.html (Release Notes, Vendor Advisory)
- github.com/dask/dask/tags (Third Party Advisory)
- github.com/dask/distributed/security/advisories/GHSA-hwqr-f3v9-hwxr (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42343?
- CVE-2021-42343 is a critical-severity vulnerability in Anaconda Dask. CVSS score: 9.8/10. Published 2021-10-26.
- How severe is CVE-2021-42343?
- Critical severity. CVSS v3 base score is 9.8 out of 10.