by Kastro
Paper/Archive/CVE-2021-24044

CVE-2021-24044

Facebook Hermes — By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes wou…

EPSS 1%CVSS 9.8
critical.is priorityof 100
43
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 69.6.696 × 2013.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes would invoke generator functions and error out on invalid await/yield positions. This could result in segmentation fault as a consequence of type confusion error, with a low chance of RCE. This issue affects Hermes versions prior to v0.10.0.

Affected

ProductAffectedFixed inSource
Hermesunspecified – < 0.10.00.10.0CNA

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-2021-24044