CVE-2021-34896: Bentley View BMP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Thu Jan 13 2022(Updated: )
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.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Bentley View | <10.16.02 | |
| Bentley MicroStation | <10.16.02 | |
| Bentley Systems |
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Reference Links
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.
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