CVE-2021-34971: Foxit PDF Reader JPG2000 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
Foxit PDF Reader JPG2000 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF 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 parsing of PDF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14812.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34971?
The severity of CVE-2021-34971 is critical due to its potential for remote code execution.
How do I fix CVE-2021-34971?
To fix CVE-2021-34971, update your Foxit PDF Reader to the latest version provided by the vendor.
What type of vulnerability is CVE-2021-34971?
CVE-2021-34971 is a heap-based buffer overflow vulnerability.
What are the potential impacts of CVE-2021-34971?
The potential impacts of CVE-2021-34971 include the ability for attackers to execute arbitrary code on the affected system.
Is user interaction required to exploit CVE-2021-34971?
Yes, user interaction is required to exploit CVE-2021-34971.