CVE-2020-15667 : Vulnerability Insights and Analysis
Learn about CVE-2020-15667, a vulnerability in Firefox < 80 that could lead to memory corruption and arbitrary code execution. Find out how to mitigate this issue and protect your system.
A vulnerability in Firefox < 80 could allow an attacker to execute arbitrary code through a heap overflow when processing a MAR update file.
Understanding CVE-2020-15667
What is CVE-2020-15667?
This CVE describes a heap overflow vulnerability in Firefox < 80 that could lead to memory corruption and potential arbitrary code execution.
The Impact of CVE-2020-15667
The vulnerability could be exploited by an attacker to trigger a heap overflow, potentially leading to memory corruption and arbitrary code execution.
Technical Details of CVE-2020-15667
Vulnerability Description
After validating a MAR update file signature, an invalid name length could trigger a heap overflow, resulting in memory corruption and potential code execution.
Affected Systems and Versions
- Product: Firefox
- Vendor: Mozilla
- Versions Affected: < 80
Exploitation Mechanism
- The issue arises during the processing of MAR update files.
Mitigation and Prevention
Immediate Steps to Take
- Update Firefox to version 80 or higher to mitigate the vulnerability.
- Avoid downloading files from untrusted sources.
Long-Term Security Practices
- Regularly update software to the latest versions.
- Implement proper security measures to prevent unauthorized access.
Patching and Updates
- Stay informed about security advisories from Mozilla and apply patches promptly.