Buffer overflow in Bentley View
CVE-2021-34938
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. 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-14995.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Bentley View
- Bentley Microstation
- Bentley View — versions 10.15.0.75
Weakness classification (CWE)
References
- www.bentley.com/en/common-vulnerability-exposure/BE-2021-0005 (Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-1526/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34938?
- CVE-2021-34938 is a high-severity vulnerability in Bentley View, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2022-01-13.
- How severe is CVE-2021-34938?
- High severity. CVSS v3 base score is 7.8 out of 10.