CVE Vulnerabilities

CVE-2019-1065

Time-of-check Time-of-use (TOCTOU) Race Condition

Published: Jun 12, 2019 | Modified: May 20, 2025
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
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An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system. The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.

Weakness

The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check.

Affected Software

NameVendorStart VersionEnd Version
Windows_10Microsoft1803 (including)1803 (including)
Windows_10Microsoft1809 (including)1809 (including)
Windows_10Microsoft1903 (including)1903 (including)
Windows_server_2016Microsoft1803 (including)1803 (including)
Windows_server_2016Microsoft1903 (including)1903 (including)
Windows_server_2019Microsoft- (including)- (including)

Potential Mitigations

References