CVE-2020-1911

2020-09-0403:15:09

Google

osv.dev

7.6 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

70.5%

JSON

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.

CPENameOperatorVersion
hermeseq0.1.1
hermeseq0.2.1
hermeseq0.3.0
hermeseq0.5.0
hermeseq0.6.0
hermeseq0.4.0
hermeseq0.1.0

Name	Operator	Version
hermes	eq	0.1.1
hermes	eq	0.2.1
hermes	eq	0.3.0
hermes	eq	0.5.0
hermes	eq	0.6.0
hermes	eq	0.4.0
hermes	eq	0.1.0

References

github.com/facebook/hermes/commit/fe52854cdf6725c2eaa9e125995da76e6ceb27da

www.facebook.com/security/advisories/cve-2020-1911