Apache 1.3 IP address access control failure on some 64-bit platforms

Description:

Henning Brauer discovered a programming error in Apache 1.3's mod_access that results in the netmasks in IP address access control rules being interpreted incorrectly on 64-bit, big-endian platforms. In some cases, this could cause a `deny from' IP address access control rule including a netmask to fail.

References:

• CVE name CVE-2003-0993
• URL: <http://cvs.apache.org/viewcvs.cgi/apache-1.3/src/modules/standard/mod_access.c?r1=1.46&r2=1.47>
• URL: <http://www.apacheweek.com/features/security-13>
• URL: <http://nagoya.apache.org/bugzilla/show_bug.cgi?id=23850>
• List post: <http://marc.theaimsgroup.com/?l=apache-cvs&m=107869603013722>
• BugTraq ID 9829

Affects:

• apache <1.3.29_2
• apache+mod_ssl <1.3.29+2.8.16_1
• apache+ssl <1.3.29.1.53_1
• ru-apache <1.3.29+30.19_1
• ru-apache+mod_ssl <1.3.29+30.19+2.8.16_1

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