Advisory Details

December 8th, 2021

Bentley View JP2 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-21-1471
ZDI-CAN-14835

CVE ID CVE-2021-34882
CVSS SCORE 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AFFECTED VENDORS Bentley
AFFECTED PRODUCTS View
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information 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 JP2 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

ADDITIONAL DETAILS Bentley has issued an update to correct this vulnerability. More details can be found at:
https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0008
DISCLOSURE TIMELINE
  • 2021-08-11 - Vulnerability reported to vendor
  • 2021-12-08 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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