CVE-2021-34907: Bentley View BMP File Parsing Heap-based Buffer Overflow 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 BMP 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-14880.
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 BMP 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34907?
CVE-2021-34907 is considered critical as it allows remote code execution on affected systems.
How do I fix CVE-2021-34907?
To fix CVE-2021-34907, users should update Bentley View to version 10.16.02 or later.
Which software is affected by CVE-2021-34907?
CVE-2021-34907 affects Bentley View 10.15.0.75 and Bentley MicroStation versions below 10.16.02.
Is user interaction required to exploit CVE-2021-34907?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file.
What type of vulnerability is CVE-2021-34907?
CVE-2021-34907 is a remote code execution vulnerability.