CVE-2021-34940: Bentley View JT File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
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-15039.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View. 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34940?
CVE-2021-34940 is classified as a high severity vulnerability that allows remote code execution.
How do I fix CVE-2021-34940?
To address CVE-2021-34940, upgrade Bentley View and MicroStation to version 10.16.02 or later.
What software is affected by CVE-2021-34940?
CVE-2021-34940 affects Bentley View version up to 10.15.0.75 and Bentley MicroStation version up to 10.15.0.75.
What kind of attack vector is present in CVE-2021-34940?
CVE-2021-34940 can be exploited through user interaction, requiring a visit to a malicious page or opening a malicious file.
What are the potential impacts of CVE-2021-34940?
The exploitation of CVE-2021-34940 may allow attackers to execute arbitrary code on the affected systems.