Out-of-bounds write in MicroStation and Bentley View - CVE-2021-34877
Published: December 8, 2021
Vulnerability identifier: #VU58731
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-34877
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: BENTLEY SYSTEMS
Affected software:
MicroStation
Bentley View
MicroStation
Bentley View
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing JT files. A remote attacker can create a specially crafted JT file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
How to mitigate CVE-2021-34877
Install updates from vendor's website.