PT-2018-1479 · Microsoft · Windows Server 2016+8

Ranchoice · Published 2018-08-14 · Updated 2019-10-03 · CVE-2018-8404

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Windows 7 Windows Server 2012 R2 Windows Server 2012 Windows 8.1 Windows Server 2016 Windows Server 2008 R2 Windows 10 Windows 10 Servers

Description The issue is caused by a buffer overflow in the Win32k component of Windows operating systems, which can be exploited to elevate privileges and gain full control over the system using a specially crafted application. This is due to the Win32k component's failure to properly handle objects in memory.

Recommendations For Windows 7, apply the patch provided by Microsoft to fix the issue. For Windows Server 2012 R2, apply the patch provided by Microsoft to fix the issue. For Windows Server 2012, apply the patch provided by Microsoft to fix the issue. For Windows 8.1, apply the patch provided by Microsoft to fix the issue. For Windows Server 2016, apply the patch provided by Microsoft to fix the issue. For Windows Server 2008 R2, apply the patch provided by Microsoft to fix the issue. For Windows 10, apply the patch provided by Microsoft to fix the issue. For Windows 10 Servers, apply the patch provided by Microsoft to fix the issue. As a temporary workaround, consider restricting access to the NtGdiClearBitmapAttributes function until a patch is available.

Fix

LPE

Buffer Overflow

Improper Resource Release

Weakness Enumeration

CWE-119

CWE-404

Related Identifiers

BDU:2018-01030

CVE-2018-8404

ZDI-18-945

Affected Products

Windows

Windows 10

Windows 10 Servers

Windows 7

Windows 8.1

Windows Server 2008 R2

Windows Server 2012

Windows Server 2012 R2

Windows Server 2016

References · 10

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8404 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-8404 · Security Note
• https://bdu.fstec.ru/vul/2018-01030 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2018-8404 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-18-945 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8404 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-8404 · Vendor Advisory
• http://securitytracker.com/id/1041466 · Note
• https://support.microsoft.com/help/4343900 · Note
• http://securityfocus.com/bid/104999 · Note