CVE-2019-1010083: Pallets Project Flask is vulnerable to Denial of Service via Unexpected memory usage

CVE-2019-1010083 · Severity: low · CVSS 3.1 · Published 2019-07-17

The Pallets Project Flask before 1.0 is affected by: unexpected memory usage. The impact is: denial of service. The attack vector is: crafted encoded JSON data. The fixed version is: 1. NOTE: this may overlap CVE-2018-1000656.

Technologies: flask (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2019-1010083 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2019-1010083 being exploited in the wild.
How severe is CVE-2019-1010083?
Low severity, with a CVSS score of 3.1, published 17 July 2019.
Which products and versions are affected?
flask (PyPI) ECOSYSTEM:introduced=0,fixed=1.0.
Is there a fix for CVE-2019-1010083?
Yes. flask (PyPI): upgrade to 1.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2019-1010083?
Check whether you run flask (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

  • flask (PyPI): upgrade to 1.0 or later
    pip install "flask>=1.0"

Affected products

  • flask (PyPI) ECOSYSTEM:introduced=0,fixed=1.0

Identifiers

  • CVE-2019-1010083
  • GHSA-5wv5-4vpf-pj6m
  • PYSEC-2019-179

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