CVE-2021-42717 (GCVE-0-2021-42717)

Vulnerability from cvelistv5 – Published: 2021-12-07 21:08 – Updated: 2024-08-04 03:38
VLAI?
Summary
ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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