Integer underflow in Windows and Windows Server - CVE-2019-1093
Published: July 9, 2019 / Updated: July 11, 2019
Vulnerability identifier: #VU19075
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-1093
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the affected system.
The vulnerability exists due to an integer underflow during the parsing of font files in the DirectWrite library. A remote attacker can use a specially crafted document or a webpage, trick the victim into opening it, trigger an integer underflow and execute arbitrary code on the system.
How to mitigate CVE-2019-1093
Install update from vendor's website.