CVE Vulnerability

CVE-2020-1911

A type confusion vulnerability when resolving properties of JavaScript objects with specially-crafted prototype chains in Facebook Hermes prior to commit fe52854cdf6725c2eaa9e125995da76e6ceb27da 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.

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-2020-1911 Third Party Advisory
https://github.com/facebook/hermes/commit/fe52854cdf6725c2eaa9e125995da76e6ceb27da Patch Third Party Advisory
Configurations

Configuration 1

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

Published : 2020-09-04 03:15

Updated : 2020-09-11 05:02

NVD link : CVE-2020-1911

Mitre link : CVE-2020-1911

Products Affected
No products.
CWE
CWE-843