CVE-2020-10062 : Vulnerability Insights and Analysis
Learn about CVE-2020-10062, a critical off-by-one error in Zephyr project's MQTT packet length decoder, leading to memory corruption and potential remote code execution. Find mitigation steps and impact details here.
An off-by-one error in the Zephyr project MQTT packet length decoder can lead to memory corruption and potential remote code execution.
Understanding CVE-2020-10062
This CVE involves a critical vulnerability in the Zephyr project MQTT packet length decoder, impacting versions 2.2.0 and later.
What is CVE-2020-10062?
The vulnerability is due to an off-by-one error in the MQTT packet length decoder of the Zephyr project, potentially allowing attackers to execute remote code and corrupt memory.
The Impact of CVE-2020-10062
- CVSS Base Score: 9 (Critical)
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Scope: Changed
- Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Technical Details of CVE-2020-10062
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The off-by-one error in the MQTT packet length decoder of Zephyr project can result in memory corruption and potential remote code execution.
Affected Systems and Versions
The vulnerability affects:
- Product: Zephyr
- Vendor: Zephyrproject-rtos
- Versions: 2.2.0 and later
Exploitation Mechanism
The vulnerability can be exploited remotely through a network connection, without requiring any special privileges.
Mitigation and Prevention
To address CVE-2020-10062, follow these mitigation strategies:
Immediate Steps to Take
- Apply patches provided by the vendor promptly.
- Monitor security advisories for updates and apply them as soon as they are available.
Long-Term Security Practices
- Regularly update and patch software to prevent known vulnerabilities.
- Implement network security measures to reduce the risk of remote exploitation.
- Conduct regular security assessments and audits to identify and address potential vulnerabilities.
Patching and Updates
Ensure that you regularly check for updates and patches from Zephyrproject-rtos to address CVE-2020-10062.