Out-of-Bounds Affecting hermes-engine package, versions <0.8.0


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.11% (45th percentile)

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  • Snyk IDSNYK-JS-HERMESENGINE-1727253
  • published30 Sept 2021
  • disclosed26 Oct 2020
  • creditUnknown

Introduced: 26 Oct 2020

CVE-2020-1915  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade hermes-engine to version 0.8.0 or higher.

Overview

hermes-engine is an A JavaScript engine optimized for running React Native on Android

Affected versions of this package are vulnerable to Out-of-Bounds. An out-of-bounds read in the JavaScript Interpreter in Facebook Hermes prior to commit 8cb935cd3b2321c46aa6b7ed8454d95c75a7fca0 allows attackers to cause a denial of service attack or possible further memory corruption via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

CVSS Scores

version 3.1