ESLint dependencies ReDoS and prototype pollution (withdrawn)

Severity: info · Published 2020-03-13

This advisory was withdrawn by GitHub due to inaccuracies during CVE ingestion. The underlying vulnerabilities affected ESLint's dependencies (minimist and acorn libraries used by JavaScript development tools) and included regular expression denial-of-service flaws and prototype pollution issues that could crash development environments or allow code manipulation during parsing.

Technologies: minimist (npm). Vendors: npm.

Quick answers

Is This vulnerability exploited in the wild?
No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.
How severe is This vulnerability?
Informational severity, published 13 March 2020.
Which products and versions are affected?
acorn (npm) < 5.7.4, >= 6.0.0, < 6.4.1, >= 7.0.0, < 7.1.1; minimist (npm) < 0.2.1 and >= 1.0.0, < 1.2.3.
Is there a fix for This vulnerability?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is This vulnerability attacked?
It is attacked over the network.
Am I affected?
Check whether you run acorn (npm) or minimist (npm) 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.

Technical details

This advisory was withdrawn and superseded by GHSA-vh95-rmgr-6w4m (minimist prototype pollution, CVE-2020-7598) and GHSA-6chw-6frg-f759 (acorn ReDoS). The minimist vulnerability involves improper sanitization of command-line arguments, allowing prototype pollution attacks that modify Object.prototype. The acorn vulnerability is a regular expression denial-of-service flaw triggered by malformed UTF-16 sequences like /[x-\ud800]/u that cause infinite loops in the parser. Both affect applications processing untrusted input. Patches are available for all affected versions.

Affected products

  • npm minimist < 0.2.1 and >= 1.0.0, < 1.2.3
  • npm acorn < 5.7.4, >= 6.0.0, < 6.4.1, >= 7.0.0, < 7.1.1

Timeline

  • 2020-03-13: disclosed
  • 2020-04-03: other: advisory withdrawn and replaced with GHSA-vh95-rmgr-6w4m and GHSA-6chw-6frg-f759

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