7.8
CWE
787 122
Advisory Published
Updated
Advisory Published

CVE-2021-34938: Bentley View JT File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

First published: Thu Jan 13 2022(Updated: )

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. 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 parsing of JT files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14995.

Credit: zdi-disclosures@trendmicro.com

Affected SoftwareAffected VersionHow to fix
Bentley View<10.16.02
Bentley MicroStation<10.16.02
Bentley Systems

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Frequently Asked Questions

  • What is the severity of CVE-2021-34938?

    CVE-2021-34938 has a high severity rating due to its potential for remote code execution.

  • How do I fix CVE-2021-34938?

    To fix CVE-2021-34938, upgrade Bentley View and MicroStation to versions beyond 10.16.02.

  • What software is affected by CVE-2021-34938?

    CVE-2021-34938 affects Bentley View versions up to 10.16.02 and all versions of Bentley MicroStation up to the same version.

  • Is user interaction required to exploit CVE-2021-34938?

    Yes, user interaction is required to exploit CVE-2021-34938, as the target must visit a malicious page or open a malicious file.

  • What type of vulnerability is CVE-2021-34938?

    CVE-2021-34938 is classified as a remote code execution vulnerability.

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