CVE-2020-6077 : Vulnerability Insights and Analysis
Learn about CVE-2020-6077, a high-severity denial-of-service vulnerability in Videolabs libmicrodns 0.1.0. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages, the implementation does not properly keep track of the available data in the message, possibly leading to an out-of-bounds read that would result in a denial of service. An attacker can send an mDNS message to trigger this vulnerability.
Understanding CVE-2020-6077
This CVE involves a denial-of-service vulnerability in Videolabs libmicrodns 0.1.0, allowing attackers to cause a denial of service by triggering an out-of-bounds read.
What is CVE-2020-6077?
CVE-2020-6077 is a vulnerability in Videolabs libmicrodns 0.1.0 that enables attackers to exploit the message-parsing functionality, leading to a denial of service.
The Impact of CVE-2020-6077
The impact of this vulnerability is rated as high with a CVSS base score of 7.5. It can result in a denial of service, affecting the availability of the system.
Technical Details of CVE-2020-6077
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0, allowing for an out-of-bounds read when processing mDNS messages.
Affected Systems and Versions
- Product: Videolabs
- Version: Videolabs libmicrodns 0.1.0
Exploitation Mechanism
The vulnerability can be exploited by sending a malicious mDNS message to the target system, triggering the out-of-bounds read.
Mitigation and Prevention
To address CVE-2020-6077, follow these mitigation strategies:
Immediate Steps to Take
- Apply vendor patches 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 components
- Conduct security assessments and penetration testing to identify vulnerabilities
Patching and Updates
- Check for security advisories from Videolabs and apply patches as soon as they are available