Denial of Service (DoS) Affecting facebook/hermes package, versions [,0.4.4)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.31% (70th percentile)

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  • Snyk IDSNYK-UNMANAGED-FACEBOOKHERMES-2365243
  • published26 Jan 2022
  • disclosed9 Sept 2020
  • creditUnknown

Introduced: 9 Sep 2020

CVE-2020-1913  (opens in a new tab)
CWE-681  (opens in a new tab)

How to fix?

Upgrade facebook/hermes to version 0.4.4 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). An Integer signedness error in the JavaScript Interpreter in Facebook Hermes prior to commit 2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6 allows attackers to cause a denial of service attack or a potential RCE 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