CVE-2012-4388

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.

• CWE-20

• http://article.gmane.org/gmane.comp.php.devel/70584Broken Link
• http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00006.htmlMailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/08/29/5Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/09/02/1Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/09/05/15Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/09/07/3Mailing List, Third Party Advisory
• http://security-tracker.debian.org/tracker/CVE-2012-4388Third Party Advisory
• http://svn.php.net/viewvc/php/php-src/branches/PHP_5_4/main/SAPI.c?r1=323986&r2=323985&pathrev=323986Exploit, Patch, Vendor Advisory
• http://www.securitytracker.com/id?1027463Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-1569-1Third Party Advisory
• https://bugs.php.net/bug.php?id=60227Vendor Advisory
• http://article.gmane.org/gmane.comp.php.devel/70584Broken Link
• http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00006.htmlMailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/08/29/5Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/09/02/1Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/09/05/15Mailing List, Third Party Advisory
• http://openwall.com/lists/oss-security/2012/09/07/3Mailing List, Third Party Advisory
• http://security-tracker.debian.org/tracker/CVE-2012-4388Third Party Advisory
• http://svn.php.net/viewvc/php/php-src/branches/PHP_5_4/main/SAPI.c?r1=323986&r2=323985&pathrev=323986Exploit, Patch, Vendor Advisory
• http://www.securitytracker.com/id?1027463Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-1569-1Third Party Advisory
• https://bugs.php.net/bug.php?id=60227Vendor Advisory

Published

Sep 7, 2012

Last Modified

Jun 16, 2026

Status

Modified