Denial of service when processing hardlink in Microsoft Windows



Published: 2020-01-14
Severity 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
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Advisory

This security advisory describes one low risk vulnerability.

1) Input validation error

Severity: Low

CVSSv3: 4.8 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-0616

CWE-ID: CWE-20 - Improper Input Validation

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 1903, 10 1909

Windows Server: 1903, 1909, 2019

CPE External links

https://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.