CVE-2021-34896: 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-14863.
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-2021-34896?
CVE-2021-34896 has a severity rating that indicates it allows remote code execution when a user interacts with a malicious page or file.
How do I fix CVE-2021-34896?
To mitigate CVE-2021-34896, upgrade Bentley View and MicroStation to versions later than 10.16.02.
What software is affected by CVE-2021-34896?
CVE-2021-34896 affects Bentley View version 10.15.0.75 and earlier, as well as Bentley MicroStation version 10.15.0.75 and earlier.
Is user interaction required to exploit CVE-2021-34896?
Yes, exploiting CVE-2021-34896 requires user interaction, such as visiting a malicious webpage or opening a malicious file.
What type of attack does CVE-2021-34896 enable?
CVE-2021-34896 enables remote attackers to execute arbitrary code on vulnerable systems.