PRIOn knowledge basePRION:CVE-2012-4388Design/Logic Flaw
The sapi_header_op function in main/SAPI.c in PHP 5.4.0RC2 through 5.4.0 does not properly determine a pointer during checks for %0D sequences (aka carriage return characters), which allows remote attackers to bypass an HTTP response-splitting protection mechanism via a crafted URL, related to improper interaction between the PHP header function and certain browsers, as demonstrated by Internet Explorer and Google Chrome. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1398.
References
article.gmane.org/gmane.comp.php.devel/70584
lists.opensuse.org/opensuse-security-announce/2013-08/msg00006.html
openwall.com/lists/oss-security/2012/08/29/5
openwall.com/lists/oss-security/2012/09/02/1
openwall.com/lists/oss-security/2012/09/05/15
openwall.com/lists/oss-security/2012/09/07/3
security-tracker.debian.org/tracker/CVE-2012-4388
svn.php.net/viewvc/php/php-src/branches/PHP_5_4/main/SAPI.c?r1=323986&r2=323985&pathrev=323986
www.securitytracker.com/id?1027463
www.ubuntu.com/usn/USN-1569-1
bugs.php.net/bug.php?id=60227
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