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.
*CVSS:
| Base Score: | 4.9 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 4.4 |
| Exploitability: | Functional |
| Remediation Level: | Unavailable |
| Report Confidence: | Uncorroborated |
Consequences:
Gain Access
Remedy:
No remedy available as of July 9, 2011.
References:
- PHP Tidy extension Web page: Musings, Insight, and of course PHP - coggeshall.org.
- 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
Platforms Affected:
- John Coggeshall Tidy extension for PHP 5.2.3
Reported:
Jun 19, 2007
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For corrections or additions please email xforce@iss.net
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.