SB2020100714 - Multiple vulnerabilities in Microsoft Azure Sphere

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Main Vulnerability Database SB2020100714

SB2020100714 - Multiple vulnerabilities in Microsoft Azure Sphere

Published: October 7, 2020

Security Bulletin ID SB2020100714
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Incorrect calculation (CVE-ID: N/A)

CWE-ID: CWE-682 - Incorrect Calculation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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

The vulnerability exists due to incorrect calculation issue in the Littlefs Quota functionality. A local user can cause a quota bypass and reboot, resulting in denial of service condition. 


2) Use of uninitialized resource (CVE-ID: N/A)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in the Littlefs filesystem functionality. A local attacker can use a specially crafted set of syscalls, trigger uninitialized usage of resources and gain access to sensitive information on the system.


Remediation

Install update from vendor's website.

References