by Kastro
Paper/Archive/CVE-2021-24037

CVE-2021-24037

Facebook Hermes — A use after free in hermes, while emitting certain error messages, prior to commit d86e185e485b6330216dee8e854455c694e3a36e allows attack…

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 78.4.784 × 2015.7No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

A use after free in hermes, while emitting certain error messages, prior to commit d86e185e485b6330216dee8e854455c694e3a36e 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.

Affected

ProductAffectedFixed inSource
Hermescommit prior to d86e185e485b6330216dee8e854455c694e3a36e–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgithub.com/facebook/hermes/commit/d86e185e485b6330216dee8e854455c694e3a36ereffacebook.com/security/advisories/CVE-2021-24037