GHSA-F5X2-XV93-4P23
Vulnerability from github – Published: 2022-05-24 17:27 – Updated: 2022-06-24 01:24
VLAI
Summary
Access of Resource Using Incompatible Type in Facebook Hermes
Details
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.
Severity
9.8 (Critical)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.4.3"
},
"package": {
"ecosystem": "npm",
"name": "hermes-engine"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-1911"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": true,
"github_reviewed_at": "2022-06-24T01:24:06Z",
"nvd_published_at": "2020-09-04T03:15:00Z",
"severity": "CRITICAL"
},
"details": "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.",
"id": "GHSA-f5x2-xv93-4p23",
"modified": "2022-06-24T01:24:06Z",
"published": "2022-05-24T17:27:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1911"
},
{
"type": "WEB",
"url": "https://github.com/facebook/hermes/commit/fe52854cdf6725c2eaa9e125995da76e6ceb27da"
},
{
"type": "WEB",
"url": "https://www.facebook.com/security/advisories/cve-2020-1911"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Access of Resource Using Incompatible Type in Facebook Hermes"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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