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Mageia 8: 2021-0576 Moderate: Apache Mod_Security JSON Issue

mageia
Calendar Grey December 21, 2021
Dist Mageia Esm H88
Recent updates to apache-mod_security packages address vulnerabilities related to deep JSON hierarchy, which could affect web server handling of requests.
Updated apache-mod_security packages fix security vulnerability: ModSecurity mishandles excessively nested JSON objects

Summary

Updated apache-mod_security packages fix security vulnerability:
ModSecurity 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 (CVE-2021-42717).

References

- https://bugs.mageia.org/show_bug.cgi?id=29787

- https://www.cve.org/CVERecord?id=CVE-2021-42717

Topics%20covered

Topics Covered

security advisory moderate apache mod_security web server mageia JSON issue

Resolution

SRPMS

- 8/core/apache-mod_security-2.9.5-1.mga8

Publication date: 21 Dec 2021
URL: https://advisories.mageia.org/MGASA-2021-0576.html
Type: security
CVE: CVE-2021-42717

Topics%20covered

Topics Covered

security advisory moderate apache mod_security web server mageia JSON issue

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