SB2016071226 - Security Update for Windows Kernel-Mode Drivers
Published: July 12, 2016
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Memory corruption in Win32k.sys driver (CVE-ID: CVE-2016-3249)
CWE-ID: CWE-119 - Memory corruption
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 user to obtain elevated privileges.
The vulnerability exists doe to an error in Win32k.sys kernel-mode driver when handling certain objects in memory. A local user can elevate privileges on vulnerable system.
Successful exploitation of this vulnerability will allow a local attacker to executed arbitrary code with SYSTEM privileges.
2) Memory corruption in Win32k.sys driver (CVE-ID: CVE-2016-3250)
CWE-ID: CWE-119 - Memory corruption
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 user to obtain elevated privileges.
The vulnerability exists doe to an error in Win32k.sys kernel-mode driver when handling certain objects in memory. A local user can elevate privileges on vulnerable system.
Successful exploitation of this vulnerability will allow a local attacker to executed arbitrary code with SYSTEM privileges.
3) Information disclosure in Win32k.sys driver (CVE-ID: CVE-2016-3251)
CWE-ID: CWE-119 - Memory corruption
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 user to gain access to potentially sensitive data.
The vulnerability exists due to out-of-bounds read in Windows GDI component. A local attacker can gain access to potentially sensitive information on the system
Successful exploitation of this vulnerability will allow a local attacker to read potentially sensitive information on the system.
4) Memory corruption in Win32k.sys driver (CVE-ID: CVE-2016-3252)
CWE-ID: CWE-119 - Memory corruption
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 user to obtain elevated privileges.
The vulnerability exists doe to an error in Win32k.sys kernel-mode driver when handling certain objects in memory. A local user can elevate privileges on vulnerable system.
Successful exploitation of this vulnerability will allow a local attacker to executed arbitrary code with SYSTEM privileges.
5) Memory corruption in Win32k.sys driver (CVE-ID: CVE-2016-3254)
CWE-ID: CWE-119 - Memory corruption
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 user to obtain elevated privileges.
The vulnerability exists doe to an error in Win32k.sys kernel-mode driver when handling certain objects in memory. A local user can elevate privileges on vulnerable system.
Successful exploitation of this vulnerability will allow a local attacker to executed arbitrary code with SYSTEM privileges.
6) Memory corruption in Win32k.sys driver (CVE-ID: CVE-2016-3286)
CWE-ID: CWE-119 - Memory corruption
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 user to obtain elevated privileges.
The vulnerability exists doe to an error in Win32k.sys kernel-mode driver when handling certain objects in memory. A local user can elevate privileges on vulnerable system.
Successful exploitation of this vulnerability will allow a local attacker to executed arbitrary code with SYSTEM privileges.
Remediation
Install update from vendor's website.