Critical severityNVD Advisory· Published Sep 4, 2020· Updated Aug 4, 2024
CVE-2020-1911
CVE-2020-1911
Description
A type confusion vulnerability when resolving properties of JavaScript objects with specially-crafted prototype chains in Facebook Hermes prior to commit fe52854cdf6725c2eaa9e125995da76e6ceb27da 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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
hermes-enginenpm | < 0.5.2 | 0.5.2 |
Affected products
2- Facebook/Hermesv5Range: commit prior to fe52854cdf6725c2eaa9e125995da76e6ceb27da
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-f5x2-xv93-4p23ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-1911ghsaADVISORY
- github.com/facebook/hermes/commit/fe52854cdf6725c2eaa9e125995da76e6ceb27daghsax_refsource_CONFIRMWEB
- www.facebook.com/security/advisories/cve-2020-1911ghsax_refsource_CONFIRMWEB
News mentions
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