This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF Reader 11.1.0.52543. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Doc objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-16115.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pdf_editor | Foxit | * | 10.1.6.37749 (including) |
| Pdf_editor | Foxit | 11.0.0.49893 (including) | 11.2.0.53415 (including) |
| Pdf_reader | Foxit | * | 11.1.0.52543 (including) |