OnlyPatch
Windows Kernel

CVE-2018-0832 — Windows Kernel Information Disclosure Vulnerability

Important CVSS 4.7 2018-02 archive

Executive Summary

An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object. To exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.

Overview

4.7
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Information Disclosure
Released Feb 13 2018
Last Updated Feb 13 2018
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known

CVSS Vector

ATTACK VECTOR
Local
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.2

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

14 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 4074596 (Security Update) Important Information Disclosure Yes
Windows 10 for x64-based Systems 4074596 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1511 for 32-bit Systems 4074591 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1511 for x64-based Systems 4074591 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1607 for 32-bit Systems 4074590 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1607 for x64-based Systems 4074590 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1703 for 32-bit Systems 4074592 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1703 for x64-based Systems 4074592 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1709 for 32-bit Systems 4074588 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1709 for x64-based Systems 4074588 (Security Update) Important Information Disclosure Yes
Windows 8.1 for 32-bit systems 4074594 (Monthly Rollup) 4074597 (Security Only) Important Information Disclosure 4056895 Base: 4.7 Temporal: 4.2 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows 8.1 for x64-based systems 4074594 (Monthly Rollup) 4074597 (Security Only) Important Information Disclosure 4056895 Base: 4.7 Temporal: 4.2 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows RT 8.1 4074594 (Monthly Rollup) Important Information Disclosure Yes
Windows Server 2012 R2 4074594 (Monthly Rollup) 4074597 (Security Only) Important Information Disclosure 4056895 Base: 4.7 Temporal: 4.2 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows Server 2012 R2 (Server Core installation) 4074594 (Monthly Rollup) 4074597 (Security Only) Important Information Disclosure 4056895 Base: 4.7 Temporal: 4.2 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C Yes None Windows Server 2016 4074590 (Security Update) Important Information Disclosure Yes
Windows Server 2016 (Server Core installation) 4074590 (Security Update) Important Information Disclosure Yes
Windows Server, version 1709 (Server Core Installation) 4074588 (Security Update) Important Information Disclosure Yes

Patches

6 patches
Article Type Restart
4074596 Security Update Yes
4074591 Security Update Yes
4074590 Security Update Yes
4074592 Security Update Yes
4074588 Security Update Yes
4074594 Monthly Rollup Yes

Known Exploits

Acknowledgments

Mateusz Jurczyk of Google Project Zero

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