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CVE-2020-1911

CRITICAL

9.8

Description

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published9/4/2020

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

facebook:hermes

Weaknesses (CWE)

CWE-843CWE-843

References

https://github.com/facebook/hermes/commit/fe52854cdf6725c2eaa9e125995da76e6ceb27da(cve-assign@fb.com)

https://www.facebook.com/security/advisories/cve-2020-1911(cve-assign@fb.com)

https://github.com/facebook/hermes/commit/fe52854cdf6725c2eaa9e125995da76e6ceb27da(af854a3a-2127-422b-91ae-364da2661108)

https://www.facebook.com/security/advisories/cve-2020-1911(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.