CVE-2020-35609 — MEDIUM (5.5)

Vulnerability Description

A denial-of-service vulnerability exists in the asynchronous ioctl functionality of Microsoft Azure Sphere 20.05. A sequence of specially crafted ioctl calls can cause a denial of service. An attacker can write shellcode to trigger this vulnerability.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Azure Sphere	20.05

Related Weaknesses (CWE)

CWE-835

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1117ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1117ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1117ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1117ExploitThird Party Advisory

FAQ

What is CVE-2020-35609?

CVE-2020-35609 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A denial-of-service vulnerability exists in the asynchronous ioctl functionality of Microsoft Azure Sphere 20.05. A sequence of specially crafted ioctl calls can cause a denial of service. An attacker...

How severe is CVE-2020-35609?

CVE-2020-35609 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-35609?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Azure Sphere.