CVE-2021-34923: bentley bentley_view Out-of-bounds Write

Vulnerability summary

CVE-2021-34923 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in bentley bentley_view. EPSS estimates a 1.94% chance of exploitation in the next 30 days, higher than 79.7% of scored vulnerabilities.

Timeline

1. 13-01-2022
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

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. Crafted data in a JT file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14901.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.