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CVE-2020-1914

UNKNOWN
Published 2020-10-08T18:50:11
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No CVSS data available

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Facebook

Hermes

Affected Versions:

commit prior to b2021df620824627f5a8c96615edbd1eb7fdddfc

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed CRITICAL

Always-Incorrect Control Flow Implementation in Facebook Hermes

GHSA-327c-qx3v-h673

Advisory Details

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 Packages

npm hermes-engine
ECOSYSTEM: ≥0 <0.7.2

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2020-1914
WEB https://github.com/facebook/hermes/issues/373
WEB https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc
PACKAGE https://github.com/facebook/hermes
WEB https://www.facebook.com/security/advisories/cve-2020-1914

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: June 27, 2022

References

https://www.facebook.com/security/advisories/cve-2020-1914
https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc
Published: 2020-10-08T18:50:11
Last Modified: 2024-08-04T06:53:59.745Z
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