Advisory Details

December 15th, 2022

Microsoft Office Visio DWG File Parsing Use-After-Free Information Disclosure Vulnerability

ZDI-22-1672
ZDI-CAN-19048

CVE ID CVE-2022-44695
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 Office Visio
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Microsoft Office Visio. 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 DWG files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

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-2022-44695
DISCLOSURE TIMELINE
  • 2022-09-30 - Vulnerability reported to vendor
  • 2022-12-15 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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