A disk space or quota exhaustion issue exists in article2pdf_getfile.php in the article2pdf Wordpress plugin 0.24, 0.25, 0.26, 0.27. Visiting PDF generation link but not following the redirect will leave behind a PDF file on disk which will never be deleted by the plug-in.
Weakness
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Article2pdf | Article2pdf_project | 0.24 (including) | 0.27 (including) |
Potential Mitigations
- Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
- For example, glibc in Linux provides protection against free of invalid pointers.
- When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
- To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
References
- http://packetstormsecurity.com/files/152236/WordPress-article2pdf-0.24-DoS-File-Deletion-Disclosure.html
- https://seclists.org/bugtraq/2019/Mar/49
- https://wpvulndb.com/vulnerabilities/9246
- http://packetstormsecurity.com/files/152236/WordPress-article2pdf-0.24-DoS-File-Deletion-Disclosure.html
- https://seclists.org/bugtraq/2019/Mar/49
- https://wpvulndb.com/vulnerabilities/9246