#VU5610 NULL pointer dereference in Windows and Windows Server - CVE-2017-0016
Published: February 2, 2017 / Updated: March 15, 2017
Vulnerability identifier: #VU5610
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2017-0016
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to cause denial of service.
The vulnerability exists due to a NULL pointer dereference error when processing Server Message Block (SMB) network traffic. A remote attacker can send specially crafted response, containing too many bytes following the structure defined in the SMB2 TREE_CONNECT Response structure and cause the affected system to crash.
Successful exploitation of the vulnerability may allow an attacker to perform a denial of service (DoS) attack.
Note: the exploit code for this vulnerability is publicly available.
Remediation
Install updates from vendor's website.