SB2017071115 - Multiple vulnerabilities in Win32k.sys in Microsoft Windows
Published: July 11, 2017
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Memory corruption (CVE-ID: CVE-2017-8577)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper handling of object in memory in Microsoft Graphics Component within win32k.sys driver. A local user can execute arbitrary code on the target system with elevated privileges.
2) Memory corruption (CVE-ID: CVE-2017-8578)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper handling of object in memory in Microsoft Graphics Component within win32k.sys driver. A local user can execute arbitrary code on the target system with elevated privileges.
3) Memory corruption (CVE-ID: CVE-2017-8580)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper handling of object in memory in Microsoft Graphics Component within win32k.sys driver. A local user can execute arbitrary code on the target system with elevated privileges.
4) Memory corruption (CVE-ID: CVE-2017-8581)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper handling of object in memory in Microsoft Graphics Component within win32k.sys driver. A local user can execute arbitrary code on the target system with elevated privileges.
5) Memory corruption (CVE-ID: CVE-2017-8467)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper handling of object in memory in Microsoft Graphics Component within win32k.sys driver. A local user can execute arbitrary code on the target system with elevated privileges.
6) Information disclosure (CVE-ID: CVE-2017-8486)
The vulnerability allows a local user to obtain potentially sensitive information.
The vulnerability exists due to an error when processing objects in memory within Win32k.sys driver. A local user can gain access to potentially sensitive information on the system.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8577
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8578
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8580
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8581
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8467
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8486