CVE-2021-42717

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...

Description d'origine

La description telle que publiée par la source (souvent en anglais).

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.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Paquets affectés

Bitnami modsecurity

[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.9.5"}]}]

Bitnami modsecurity2

[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.9.5"}]}]

État des correctifs par distribution

Paquets corrigés publiés par chaque distribution pour cette CVE

Debian DEBIAN-CVE-2021-42717 modsecurity Corrigé dans: 3.0.6-1
Ubuntu UBUNTU-CVE-2021-42717 modsecurity-apache Corrigé dans: 2.9.0-1ubuntu0.1~esm1

Références

advisory lists.debian.org
advisory debian.org
advisory oracle.com
advisory trustwave.com
web nvd.nist.gov