Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader. 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 CPDF_Object 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 vulnerability to execute code under the context of the current process.
- Foxit Reader 184.108.40.206351 and prior
- Foxit PhantomPDF 220.127.116.11351 and prior
- 19 January 2018 – Reported to vendor
- 20 April 2018 – Coordinated public release of advisory
Sudhakar Verma and Ashfaq Ansari – Project Srishti