Advisory Details

December 19th, 2022

Microsoft Office SKP File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-22-1677
ZDI-CAN-18517

CVE ID CVE-2022-47211
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Office
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Office. 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 SKP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute 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-2022-47211
DISCLOSURE TIMELINE
  • 2022-10-20 - Vulnerability reported to vendor
  • 2022-12-19 - Coordinated public release of advisory
CREDIT khangkito - Tran Van Khang (VinCSS)
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