#VU9304 Out-of-bounds read in Windows Server and Windows - CVE-2017-11852

Vulnerability identifier: #VU9304

Vulnerability risk: Low

CVSSv4.0: 1.1 [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]

CVE-ID: CVE-2017-11852

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows Server
Operating systems & Components / Operating system
Windows
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a local user to obtain potentially sensitive information.

The vulnerability exists due to a boundary error in win32k.sys driver when the Windows GDI component improperly discloses kernel memory addresses. A local user can obtain potentially sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2008 R2 - 2008

Windows: 7

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11852

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.