Tidy extension for PHP tidy_parse_string and tidy_repair_string buffer overflow
| php-tidy-parsestring-bo (34931) |  High Risk |
Description:
The Tidy extension for PHP 5.2.3 is vulnerable to a buffer overflow, caused by improper bounds checking by the tidy_parse_string and tidy_repair_string functions. By sending a specially-crafted command, a local attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.
Platforms Affected:
- John Coggeshall, Tidy extension for PHP 5.2.3
Remedy:
No remedy available as of June 27, 2009.
Consequences:
Gain Access
References:
- PHP Tidy extension Web page, Musings, Insight, and of course PHP - coggeshall.org at http://www.coggeshall.org/oss/tidy//index.php/4/.
- BID-24527: Tidylib for PHP Library Remote Buffer Overflow Vulnerability
- CVE-2007-3294: Multiple buffer overflows in libtidy, as used in the Tidy extension for PHP 5.2.3 and possibly other products, allow context-dependent attackers to execute arbitrary code via (1) a long second argument to the tidy_parse_string function or (2) an unspecified vector to the tidy_repair_string function. NOTE: this might only be an issue in environments where vsnprintf is implemented as a wrapper for vsprintf.
- SA25735: PHP Multiple Extensions Buffer Overflow Vulnerabilities
Reported:
Jun 19, 2007
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