Integer overflow in the ap_pregsub function in server/util.c in the
Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when
the mod_setenvif module is enabled, allows local users to gain
privileges via a .htaccess file with a crafted SetEnvIf directive, in
conjunction with a crafted HTTP request header, leading to a
heap-based buffer overflow.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
FULLDISC:20111102 Integer Overflow in Apache ap_pregsub via mod-setenvif
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