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Execution error – PCRE limits exceeded

Çağlar Arlı      -    15 Views

Execution error – PCRE limits exceeded

I have problem when implementing modsecurity and crs. Here is the issue, I hope anyone can give us some guide for resolving this issue.

Apache version :

Server version: Apache/2.4.29 (Ubuntu) Server built:
2022-06-23T12:51:37

ModSecurity version :

modsecurity-2.9.6 (compiled from source)

Error :

[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "92"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "249"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "276"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "329"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "355"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "381"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "407"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "433"] - Execution error - PCRE limits exceeded (-8): (null).
[id "-"][file "/etc/apache2/modsecurity.d/owasp-crs/rules/RESPONSE-951-DATA-LEAKAGES-SQL.conf"][line "459"]

Thing What I have done :

Set this value (tested before or after load crs.conf):

 SecPcreMatchLimit 5000000 
 SecPcreMatchLimitRecursion 5000000

Add in php.ini

pcre.backtrack_limit=1000000
pcre.recursion_limit=1000000

restart php-fpm and apache2

And no luck!, the issue still persist.

Any ideas how to fix this.

Thank you.