| Package | Affected versions | Patched versions |
|---|---|---|
| mod security | = 1.7= 1.7.1= 1.7.2= 1.7.4= 1.7.5= 1.9.4= 2.1 |
Interpretation conflict in ModSecurity (mod_security) 2.1.0 and earlier allows remote attackers to bypass request rules via application/x-www-form-urlencoded POST data that contains an ASCIIZ (0x00) byte, which mod_security treats as a terminator even though it is still processed as normal data by some HTTP parsers including PHP 5.2.0, and possibly parsers in Perl, and Python.
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