by Kastro
Paper/Archive/CVE-2020-1914

CVE-2020-1914

Facebook Hermes — A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1e…

EPSS 3%CVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 84.8.848 × 2017.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Hermescommit prior to b2021df620824627f5a8c96615edbd1eb7fdddfc–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

reffacebook.com/security/advisories/cve-2020-1914refgithub.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc