CVE-2021-34970: Foxit PDF Reader print Method Use of Externally-Controlled Format String Information Disclosure Vulnerability
Foxit PDF Reader print Method Use of Externally-Controlled Format String Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information 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 implementation of the print method. The issue results from the lack of proper validation of a user-supplied string before using it as a format specifier. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14849.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34970?
CVE-2021-34970 is classified as a medium severity vulnerability.
How do I fix CVE-2021-34970?
To mitigate CVE-2021-34970, update Foxit PDF Reader to the latest version provided by the vendor.
What type of vulnerability is CVE-2021-34970?
CVE-2021-34970 is an information disclosure vulnerability due to the use of externally-controlled format strings.
What user interaction is required for CVE-2021-34970?
User interaction is needed for the exploitation of CVE-2021-34970, as it requires the user to open a specially crafted PDF file.
Which software is affected by CVE-2021-34970?
CVE-2021-34970 affects Foxit PDF Reader installations.