CVE-2020-8851: Foxit Reader JPEG2000 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.0.29455. 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 processing of JPG2000 images. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9406.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Foxit Readerto a version that resolves this vulnerability.Fixed in 9.7.0.29455Patch ZDI-CAN-9406 - Compensating control
Since user interaction is required, reduce exposure by preventing users from opening untrusted/malicious files and visiting untrusted pages (e.g., via user training and web/file access controls).
Event History
Frequently Asked Questions
What is the severity of CVE-2020-8851?
The severity of CVE-2020-8851 is high with a CVSS score of 7.8.
How does CVE-2020-8851 impact Foxit Reader?
CVE-2020-8851 allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.0.29455.
What user interaction is required to exploit CVE-2020-8851?
User interaction is required to exploit CVE-2020-8851, such as visiting a malicious page or opening a malicious file.
Can Microsoft Windows be affected by CVE-2020-8851?
Microsoft Windows is not vulnerable to CVE-2020-8851.
How can I fix CVE-2020-8851?
To fix CVE-2020-8851, it is recommended to update Foxit Reader to version 9.7.0.29478 or later.