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Debian: Security Advisory for modsecurity-apache (DSA-5023-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'modsecurity-apache' package(s) announced via the DSA-5023-1 advisory.
Insight
Insight
It was discovered that modsecurity-apache, an Apache module to tighten the Web application security, does not properly handles excessively nested JSON objects, which could result in denial of service. The update introduces a new SecRequestBodyJsonDepthLimit option to limit the maximum request body JSON parsing depth which ModSecurity will accept (defaults to 10000).
Affected Software
Affected Software
'modsecurity-apache' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the oldstable distribution (buster), this problem has been fixed in version 2.9.3-1+deb10u1. For the stable distribution (bullseye), this problem has been fixed in version 2.9.3-3+deb11u1. We recommend that you upgrade your modsecurity-apache packages.