CVE-2021-31443: Foxit Reader U3D File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Fri May 07 2021(Updated: )
This vulnerability allows remote attackers to disclose sensitive information 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 U3D objects embedded in PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-13240.
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 | ||
| Foxit Reader |
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Reference Links
Frequently Asked Questions
What is CVE-2021-31443?
CVE-2021-31443 is a vulnerability in Foxit Reader that allows remote attackers to disclose sensitive information.
How can CVE-2021-31443 be exploited?
To exploit CVE-2021-31443, the target must visit a malicious page or open a malicious file.
Which versions of Foxit Reader are affected by CVE-2021-31443?
Foxit Reader 10.1.1.37576 up to 10.1.3.37598 are affected by CVE-2021-31443.
Are other Foxit software products vulnerable to CVE-2021-31443?
Yes, Foxit Phantompdf versions 9.7.5.29616 and 10.0.0.0 up to 10.1.3.37598 are also vulnerable.
What is the severity of CVE-2021-31443?
CVE-2021-31443 has a severity rating of medium (3.3).
How can I fix CVE-2021-31443?
To fix CVE-2021-31443, update Foxit Reader and Foxit Phantompdf to the latest available versions.
- collector/zdi-advisory
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