Advisory Details

March 31st, 2023

Microsoft 3D Builder GLTF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-23-365
ZDI-CAN-19132

CVE ID CVE-2023-21780
CVSS SCORE 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS 3D Builder
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Microsoft 3D Builder. 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 GLTF files. Crafted data in a GLTF file can trigger 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 at low integrity.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21780
DISCLOSURE TIMELINE
  • 2022-10-13 - Vulnerability reported to vendor
  • 2023-03-31 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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