CVE Vulnerability

CVE-2021-24045

A type confusion vulnerability could be triggered when resolving the "typeof" unary operator in Facebook Hermes prior to v0.10.0. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.facebook.com/security/advisories/cve-2021-24045 Vendor Advisory
https://github.com/facebook/hermes/commit/55e1b2343f4deb1a1b5726cfe1e23b2068217ff2 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*
Information

Published : 2021-12-13 09:15

Updated : 2021-12-15 09:49

NVD link : CVE-2021-24045

Mitre link : CVE-2021-24045

Products Affected
No products.
CWE
CWE-843