Out-of-Bounds Affecting hermes-engine package, versions <0.7.0


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.7% (81st percentile)

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  • Snyk ID SNYK-JS-HERMESENGINE-629748
  • published 10 Sep 2020
  • disclosed 10 Sep 2020
  • credit Unknown

How to fix?

Upgrade hermes-engine to version 0.7.0 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/write vulnerability when executing lazily compiled inner generator functions allows attackers to potentially execute arbitrary code 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
Expand this section

Snyk

Recommended
6.6 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

NVD

8.1 high