Denial of service when processing hardlink in Microsoft Windows



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-0616
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU24302

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0616

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to the Windows improperly handles hard links. A local user can use a specially crafted application and cause a target system to stop responding.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1809 10.0.17763.1 - 10 1909 10.0.18363.476

Windows Server: 2019 10.0.17763.1 - 2019 1909

CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0616


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.



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