CVE-2021-31451: Foxit Reader Annotation Use-After-Free Remote Code Execution Vulnerability
First published: Fri May 07 2021(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. 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 Annotation 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 in the context of the current process. Was ZDI-CAN-13089.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxitsoftware Foxit Reader | <=10.1.3.37598 | |
| Foxitsoftware Phantompdf | <=9.7.5.29616 | |
| Foxitsoftware Phantompdf | >=10.0.0.0<=10.1.3.37598 | |
| Microsoft Windows |
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Reference Links
Frequently Asked Questions
What is CVE-2021-31451?
CVE-2021-31451 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit Reader.
How severe is CVE-2021-31451?
CVE-2021-31451 has a severity score of 7.8 (high).
How does CVE-2021-31451 affect Foxit Reader?
CVE-2021-31451 affects Foxit Reader version 10.1.1.37576 and up to version 10.1.3.37598.
What is the required user interaction to exploit CVE-2021-31451?
The target must visit a malicious page or open a malicious file to exploit CVE-2021-31451.
How can I fix CVE-2021-31451?
To fix CVE-2021-31451, users should update to the latest version of Foxit Reader, which addresses the vulnerability.
- collector/zdi-advisory
- alias/ZDI-21-540
- alias/ZDI-CAN-13089
- alias/CVE-2021-31451
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- vendor/microsoft
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