Heap-based buffer overflow in Bentley View and MicroStation - CVE-2021-34938

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing JT files. A remote attacker can create a specially crafted JT file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Affected software

How to mitigate CVE-2021-34938

External References

• https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0005
• https://www.zerodayinitiative.com/advisories/ZDI-21-1526/

Related Security Bulletins

• Multiple vulnerabilities in Bentley View and MicroStation