PT-2023-19038 · Hermes · Hermes

Published 2023-05-18 · Updated 2025-01-21 · CVE-2023-23557

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Hermes (affected versions not specified)

Description An error in Hermes' algorithm for copying objects properties could be used by a malicious attacker to execute arbitrary code via type confusion. This issue is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Most React Native applications are not affected.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

CVE-2023-23557

Affected Products

Hermes

References · 7

• https://github.com/facebook/hermes/commit/a00d237346894c6067a594983be6634f4168c9ad · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-23557 · Security Note
• https://osv.dev/vulnerability/CVE-2023-23557 · Vendor Advisory
• https://facebook.com/security/advisories/cve-2023-23557 · Vendor Advisory
• https://t.me/cvenotify/50777 · Telegram Post
• https://t.me/cvenotify/108156 · Telegram Post
• https://t.me/cibsecurity/64442 · Telegram Post