CVE-2021-20204 : Exploit Details and Defense Strategies
Discover the impact and technical details of CVE-2021-20204, a heap memory corruption vulnerability in libgetdata v0.10.0. Learn how to mitigate and prevent potential exploitation.
A heap memory corruption vulnerability (use after free) has been discovered in libgetdata v0.10.0. This vulnerability can be exploited by processing maliciously crafted dirfile databases, impacting the confidentiality, integrity, and availability of third-party software that uses libgetdata as a library. Depending on the attacker's input and skill level, this vulnerability could lead to arbitrary code execution or privilege escalation.
Understanding CVE-2021-20204
This section dives into the specifics of CVE-2021-20204.
What is CVE-2021-20204?
CVE-2021-20204 is a heap memory corruption vulnerability (use after free) in libgetdata v0.10.0 that arises when handling specially crafted dirfile databases.
The Impact of CVE-2021-20204
The vulnerability poses a significant risk to the confidentiality, integrity, and availability of software utilizing libgetdata as a library, potentially enabling arbitrary code execution or privilege escalation.
Technical Details of CVE-2021-20204
Here are the technical details related to CVE-2021-20204.
Vulnerability Description
The vulnerability is a heap memory corruption issue (use after free) in libgetdata v0.10.0 triggered by processing maliciously crafted dirfile databases.
Affected Systems and Versions
Product: getdata Version: v0.10.0
Exploitation Mechanism
The vulnerability can be exploited by manipulating specially crafted dirfile databases to trigger the heap memory corruption issue.
Mitigation and Prevention
Learn how to mitigate and prevent the exploitation of CVE-2021-20204.
Immediate Steps to Take
- Update libgetdata to a non-vulnerable version.
- Monitor official security channels for patches or updates.
Long-Term Security Practices
- Regularly update software and libraries to the latest secure versions.
- Implement secure coding practices to prevent memory corruption vulnerabilities.
Patching and Updates
Stay informed about official patches and updates related to CVE-2021-20204 to protect your systems from potential exploitation.