CVE-2021-24044

2022-01-1500:35:08

CWE-843

facebook

www.cve.org

9.7 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.3%

JSON

By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes would invoke generator functions and error out on invalid await/yield positions. This could result in segmentation fault as a consequence of type confusion error, with a low chance of RCE. This issue affects Hermes versions prior to v0.10.0.

CNA Affected

[
  {
    "product": "Hermes",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "0.10.0",
        "versionType": "custom"
      },
      {
        "lessThan": "0.10.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.facebook.com/security/advisories/cve-2021-24044