CVE-2022-32234
An out of bounds write in hermes, while handling large arrays, prior to commit 06eaec767e376bfdb883d912cb15e987ddf2bda1 allows attackers to potentially execute arbitrary code via crafted JavaScript.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out of bounds write in hermes, while handling large arrays, prior to commit 06eaec767e376bfdb883d912cb15e987ddf2bda1 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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.96% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- facebook/hermes
- Source
- cve-assign@fb.com
References
- https://github.com/facebook/hermes/commit/06eaec767e376bfdb883d912cb15e987ddf2bda1Patch, Third Party Advisory
- https://www.facebook.com/security/advisories/CVE-2022-32234Vendor Advisory
- https://github.com/facebook/hermes/commit/06eaec767e376bfdb883d912cb15e987ddf2bda1Patch, Third Party Advisory
- https://www.facebook.com/security/advisories/CVE-2022-32234Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.