CVE-2020-10021 Explained : Impact and Mitigation
Learn about CVE-2020-10021, an out-of-bounds write vulnerability in Zephyr affecting versions 1.14.1 and 2.1.0. Discover the impact, technical details, and mitigation steps.
A detailed overview of the CVE-2020-10021 vulnerability affecting Zephyr.
Understanding CVE-2020-10021
This CVE involves an out-of-bounds write vulnerability in the USB Mass Storage memoryWrite handler with unaligned sizes.
What is CVE-2020-10021?
The vulnerability allows attackers to write beyond the bounds of allocated memory, potentially leading to a security breach.
The Impact of CVE-2020-10021
The CVSS score for this vulnerability is 8.1 (High), with significant impacts on confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2020-10021
Insights into the technical aspects of the CVE.
Vulnerability Description
The issue affects Zephyr version 1.14.1 and later, as well as version 2.1.0 and later.
Affected Systems and Versions
- Product: Zephyr
- Vendor: Zephyrproject-rtos
- Versions: 1.14.1 and later, 2.1.0 and later
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Local
- Privileges Required: None
- Scope: Changed
Mitigation and Prevention
Best practices to mitigate the CVE-2020-10021 vulnerability.
Immediate Steps to Take
- Apply patches provided by Zephyrproject-rtos promptly.
- Monitor security advisories for updates.
Long-Term Security Practices
- Conduct regular security assessments and code reviews.
- Implement secure coding practices to prevent similar vulnerabilities.
Patching and Updates
Regularly update Zephyr versions to the latest releases to ensure protection against known vulnerabilities.