Out-of-bounds Read Affecting facebook/hermes package, versions [,2023-03-20-0.72.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.64% (46th percentile)

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  • Snyk IDSNYK-UNMANAGED-FACEBOOKHERMES-5563735
  • published19 May 2023
  • disclosed19 May 2023
  • creditUnknown

Introduced: 19 May 2023

CVE-2023-24833  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade facebook/hermes to version 2023-03-20-0.72.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read due to a use-after-free in BigIntPrimitive addition which could have been used by an attacker to leak raw data from Hermes VM’s heap.

Note: This is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

CVSS Base Scores

version 3.1