Advisory Details

November 29th, 2021

Open Design Alliance (ODA) Drawings Explorer DXF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-21-1352
ZDI-CAN-14762

CVE ID CVE-2021-43391
CVSS SCORE 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AFFECTED VENDORS Open Design Alliance (ODA)
AFFECTED PRODUCTS Drawings Explorer
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Open Design Alliance (ODA) Drawings Explorer. 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 DXF 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 Open Design Alliance (ODA) has issued an update to correct this vulnerability. More details can be found at:
https://www.opendesign.com/security-advisories
DISCLOSURE TIMELINE
  • 2021-07-30 - Vulnerability reported to vendor
  • 2021-11-29 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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