CVE-2020-11068 : Security Advisory and Response
CVE-2020-11068 is a vulnerability in LoRaMac-node versions before 4.4.4 that could lead to a buffer overflow due to unchecked buffer sizes. Learn about the impact, affected systems, exploitation mechanism, and mitigation steps.
In LoRaMac-node before version 4.4.4, a reception buffer overflow vulnerability exists due to the lack of size checking on received buffers. This vulnerability has been assigned a CVSS base score of 5.0, indicating a medium severity issue.
Understanding CVE-2020-11068
What is CVE-2020-11068?
CVE-2020-11068 is a vulnerability in LoRaMac-node versions prior to 4.4.4 that could lead to a buffer overflow due to unchecked buffer sizes.
The Impact of CVE-2020-11068
The vulnerability has a CVSS base score of 5.0, with a medium severity rating. It could allow an attacker to execute arbitrary code or crash the application.
Technical Details of CVE-2020-11068
Vulnerability Description
The issue arises from a lack of validation on the size of received buffers, potentially leading to a buffer overflow.
Affected Systems and Versions
- Product: LoRaMac-node
- Vendor: LoRa
- Versions Affected: < 4.4.4
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
Mitigation and Prevention
Immediate Steps to Take
- Update LoRaMac-node to version 4.4.4 or newer to mitigate the vulnerability.
- Monitor vendor security advisories for any patches or updates.
Long-Term Security Practices
- Implement secure coding practices to prevent buffer overflows.
- Regularly update and patch software to address known vulnerabilities.
Patching and Updates
- Apply patches and updates provided by the vendor to address the buffer overflow vulnerability.