Vulnerability Description
An out-of-bounds read/write vulnerability when executing lazily compiled inner generator functions in Facebook Hermes prior to commit 091835377369c8fd5917d9b87acffa721ad2a168 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Hermes | <= 0.4.3 |
Related Weaknesses (CWE)
References
- https://github.com/facebook/hermes/commit/091835377369c8fd5917d9b87acffa721ad2a1PatchThird Party Advisory
- https://www.facebook.com/security/advisories/cve-2020-1912Vendor Advisory
- https://github.com/facebook/hermes/commit/091835377369c8fd5917d9b87acffa721ad2a1PatchThird Party Advisory
- https://www.facebook.com/security/advisories/cve-2020-1912Vendor Advisory
FAQ
What is CVE-2020-1912?
CVE-2020-1912 is a vulnerability with a CVSS score of 8.1 (HIGH). An out-of-bounds read/write vulnerability when executing lazily compiled inner generator functions in Facebook Hermes prior to commit 091835377369c8fd5917d9b87acffa721ad2a168 allows attackers to poten...
How severe is CVE-2020-1912?
CVE-2020-1912 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-1912?
Check the references section above for vendor advisories and patch information. Affected products include: Facebook Hermes.