CVE-2020-6072 : Vulnerability Insights and Analysis
Learn about CVE-2020-6072, a critical code execution vulnerability in Videolabs libmicrodns 0.1.0. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rr_decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. This vulnerability has a CVSS base score of 9.8, indicating a critical severity.
Understanding CVE-2020-6072
This CVE involves a code execution vulnerability in Videolabs libmicrodns 0.1.0.
What is CVE-2020-6072?
The vulnerability in Videolabs libmicrodns 0.1.0 allows an attacker to execute arbitrary code by triggering a double free through manipulated mDNS messages.
The Impact of CVE-2020-6072
The vulnerability has a critical severity level with high impacts on confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2020-6072
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The flaw lies in the label-parsing functionality of Videolabs libmicrodns 0.1.0, where the rr_decode function's unchecked return value can be exploited for code execution.
Affected Systems and Versions
- Product: Videolabs
- Version: Videolabs libmicrodns 0.1.0
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Exploitation can occur by sending a manipulated mDNS message.
Mitigation and Prevention
Protecting systems from CVE-2020-6072 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor patches or updates promptly.
- Monitor network traffic for any suspicious mDNS messages.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
Patching and Updates
- Check for security advisories from Videolabs and apply recommended patches.
- Keep systems up to date with the latest software versions and security fixes.