SB2018081430 - Multiple vulnerabilities in Microsoft Windows Kernel
Published: August 14, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2018-8341)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists due to improper handling of objects in memory by the Windows kernel. A local attacker can run a specially crafted application, trigger memory corruption and gain access to potentially sensitive information.
2) Information disclosure (CVE-ID: CVE-2018-8348)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists due to improper handling of objects in memory by the Windows kernel. A local attacker can run a specially crafted application, trigger memory corruption and gain access to potentially sensitive information.
3) Privilege escalation (CVE-ID: CVE-2018-8347)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists Microsoft Windows due to an error when the Windows kernel fails to properly handle parsing of certain symbolic links. A local attacker can run a specially crafted application to potentially access privileged registry keys and thereby elevate permissions.
Remediation
Install update from vendor's website.