Main Vulnerability Database Vulnerabilities #VU5336

NULL pointer dereference in Microsoft Windows and Windows Server - CVE-2016-7237

Published: November 8, 2016 / Updated: February 6, 2017

Vulnerability identifier: #VU5336

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-7237

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to cause denial of service.

The vulnerability exists due to NULL pointer dereference error when parsing SMB packets within Local Security Authority Subsystem Service (LSASS). A remote authenticated attacker can send specially crafted requests to vulnerable service and cause the target system to become non-responsive.

Successful exploitation of the vulnerability will result in denial of service (DoS).

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2016-7237

Install updates from vendor's website.

Links to Public Exploits and PoC-codes

Exploit #905 - Microsoft Windows - LSASS SMB NTLM Exchange Null-Pointer Dereference (MS16-137) (March 18, 2020)

External References

https://technet.microsoft.com/en-us/library/security/ms16-137.aspx

Related Security Bulletins

Local Security Authority Subsystem Service Denial of Service Vulnerability