Use-after-free in MicroStation and Bentley View - CVE-2021-34933
Published: December 8, 2021
Vulnerability identifier: #VU58741
CSH Severity: High
CVSSv4.0: 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-2021-34933
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
MicroStation
Bentley View
MicroStation
Bentley View
Software vendor:
BENTLEY SYSTEMS
BENTLEY SYSTEMS
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when parsing JT files. A remote attacker can trick the victim to open a specially crafted JT file, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install updates from vendor's website.