Input validation error in PHP - CVE-2012-3450

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

pdo_sql_parser.re in the PDO extension in PHP before 5.3.14 and 5.4.x before 5.4.4 does not properly determine the end of the query string during parsing of prepared statements, which allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted parameter value.

Affected software

How to mitigate CVE-2012-3450

Links to Public Exploits and PoC-codes

• Exploit #4414 - PHP 5.4.3 - PDO Memory Access Violation Denial of Service (August 11, 2020)

External References

• http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00021.html
• http://seclists.org/bugtraq/2012/Jun/60
• http://www.debian.org/security/2012/dsa-2527
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:108
• http://www.openwall.com/lists/oss-security/2012/08/02/3
• http://www.openwall.com/lists/oss-security/2012/08/02/7
• http://www.php.net/ChangeLog-5.php
• http://www.ubuntu.com/usn/USN-1569-1
• https://bugs.php.net/bug.php?id=61755
• https://bugzilla.novell.com/show_bug.cgi?id=769785

Related Security Bulletins

• Input validation error in PHP
• SUSE Linux update for PHP5
• Gentoo update for PHP