Security Advisory

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-2020-1084

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 Connected User Experiences and Telemetry Service fails to validate certain function values. A local user can run a specially crafted application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor’s website.

Vulnerable software versions

Windows:
10, 10 1607, 10 1709, 10 1803, 10 1809, 10 1903, 10 1909

Windows Server:
1803, 1903, 1909, 2016, 2019

CPE

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1084

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.

2) Buffer overflow

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-2020-1123

CWE-ID:
CWE-119 – Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability:
No

Description

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

The vulnerability exists due to the Connected User Experiences and Telemetry Service improperly handles file operations. A local user can run a specially crafted application, trigger memory corruption and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor’s website.

Vulnerable software versions

Windows:
10, 10 1607, 10 1709, 10 1803, 10 1809, 10 1903, 10 1909

Windows Server:
1803, 1903, 1909, 2016, 2019

CPE

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1123

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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