CVE-2021-31458: 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-13150.
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 the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-31458.
What software is affected by this vulnerability?
Foxit Reader versions 10.1.1.37576 and earlier, and Foxit PhantomPDF versions 9.7.5.29616 and earlier are affected by this vulnerability.
How can this vulnerability be exploited?
This vulnerability can be exploited by remote attackers through user interaction, such as visiting a malicious page or opening a malicious file.
What is the severity of CVE-2021-31458?
The severity of CVE-2021-31458 is high, with a CVSS score of 7.8.
How can I fix this vulnerability?
To fix this vulnerability, it is recommended to update to the latest version of Foxit Reader or PhantomPDF.
- collector/zdi-advisory
- alias/ZDI-21-547
- alias/ZDI-CAN-13150
- alias/CVE-2021-31458
- agent/references
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- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/foxit
- canonical/foxit reader
- vendor/foxitsoftware
- canonical/foxitsoftware phantompdf
- version/foxitsoftware phantompdf/9.7.5.29616
- version/foxitsoftware phantompdf/10.0.0.0
- version/foxitsoftware phantompdf/10.1.37598
- canonical/foxitsoftware reader
- version/foxitsoftware reader/10.1.3.37598
- vendor/microsoft
- canonical/microsoft windows