A vulnerability was found in Foxit PDF Editor 11.0.0.49893. It has been rated as critical. This issue affects some unknown functionality of the component FileAttachment Annotation Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Foxit PDF Editor FileAttachment Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. 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-14367.

It is possible to read the advisory at zerodayinitiative.com. The identification of this vulnerability is CVE-2021-34966 since 06/17/2021. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Vendor

• Foxit

Name

• PDF Editor

Version

• 11.0.0.49893

License

• free

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• 🔒

CPE 2.2info

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