Advisory Details

August 13th, 2020

Microsoft Windows WEBP VP8X Integer Overflow Remote Code Execution Vulnerability

ZDI-20-992
ZDI-CAN-10609

CVE ID CVE-2020-1574
CVSS SCORE 8.8, AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Windows
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Windows. 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 processing of WEBP images. A crafted VP8X chunk can trigger an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current user.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1574
DISCLOSURE TIMELINE
  • 2020-03-09 - Vulnerability reported to vendor
  • 2020-08-13 - Coordinated public release of advisory
CREDIT @expend20
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