CVE-2021-31457: 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-13147.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxitsoftware Phantompdf | <=9.7.5.29616 | |
| Foxitsoftware Phantompdf | >=10.0.0.0<=10.1.37598 | |
| Foxitsoftware Reader | <=10.1.3.37598 | |
| Microsoft Windows | ||
| Foxit Reader |
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Reference Links
Frequently Asked Questions
What is CVE-2021-31457?
CVE-2021-31457 is a vulnerability in Foxit Reader that allows remote attackers to execute arbitrary code on affected installations.
How can this vulnerability be exploited?
To exploit this vulnerability, the target must visit a malicious page or open a malicious file.
Which software versions are affected by CVE-2021-31457?
Foxit Reader versions up to and including 10.1.3.37598 are affected.
Is Microsoft Windows affected by CVE-2021-31457?
No, Microsoft Windows is not vulnerable to this exploit.
What is the severity of CVE-2021-31457?
CVE-2021-31457 has a severity rating of 7.8 (high).
How can I fix CVE-2021-31457?
To fix CVE-2021-31457, update Foxit Reader to version 10.1.4 or later.
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- alias/ZDI-21-546
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