CVE Vulnerability

CVE-2020-1914

A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically 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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / 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-2020-1914 Vendor Advisory
https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc Patch Third Party Advisory
Configurations

Configuration 1

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

Published : 2020-10-08 07:15

Updated : 2020-10-20 06:28

NVD link : CVE-2020-1914

Mitre link : CVE-2020-1914

Products Affected
No products.
CWE
CWE-670