Asymmetric denial of service In modsecurity-apache
Description
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is application/json, and there is at least one rule which does a sanitiseMatchedBytes action. A patch is available at pull request 3389 and expected to be part of version 2.9.9. No known workarounds are available.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 debian 11 | 2.9.3-3+deb11u3 | ||
debian 14 | 2.9.9-1 | ||
debian 12 | 2.9.7-1+deb12u1 | ||
debian 13 | 2.9.9-1 | ||
 rpm rhel9 | 0:2.9.6-2.el9_6 | ||
rpm rhel8 | 0:2.9.6-2.el8_10 | ||
rpm rhel9.4 | 0:2.9.6-1.el9_4.1 |
Aliases
1. 2. 3. 4. 5.