Advisory Details

November 13th, 2019

Microsoft Windows EMF Parsing Integer Truncation Remote Code Execution Vulnerability

ZDI-19-985
ZDI-CAN-9365

CVE ID CVE-2019-1441
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 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 handling of EMF records. The issue results from the lack of proper validation of user-supplied data, which can result in an allocation of an undersized 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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1441
DISCLOSURE TIMELINE
  • 2019-09-05 - Vulnerability reported to vendor
  • 2019-11-13 - Coordinated public release of advisory
CREDIT Hossein Lotfi of Trend Micro Zero Day Initiative
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