Heap Memory Corruption Vulnerability in libgetdata: Potential for Arbitrary Code Execution
Summary
DEBIAN-CVE-2021-20204: A heap memory corruption problem (use after free) can be triggered in libgetdata v0.10.0 when processing maliciously crafted dirfile databases. Affects libgetdata versions < 0.10.0-10. Fixed in 0.10.0-10. How to fix ↓
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Background
libgetdata is a library designed for reading and writing dirfile databases, which are used to store and manage data in a structured format. It is widely utilized in various applications that require efficient data handling. However, the library has been found to be vulnerable to a heap memory corruption issue, specifically a use-after-free error, which can be exploited when processing maliciously crafted dirfile databases.
Vulnerability Detail
The vulnerability identified as DEBIAN-CVE-2021-20204 arises from a heap memory corruption problem in libgetdata version 0.10.0. This issue can be triggered when the library processes specially crafted dirfile databases, leading to potential arbitrary code execution or privilege escalation. The vulnerability compromises the confidentiality, integrity, and availability of software that relies on libgetdata, making it critical for users to address this issue promptly.
How To Fix
Minimum fixed version
0.10.0-10
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libgetdataTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users are advised to avoid using libgetdata with untrusted dirfile databases until the package is updated to the fixed version. Additionally, implementing input validation to sanitize dirfile databases before processing may help mitigate the risk.
Conclusion
The heap memory corruption vulnerability in libgetdata poses significant risks to applications that utilize this library. Users are strongly encouraged to update to the patched version to safeguard against potential exploits. Employing workarounds and monitoring tools like Vulert can further enhance security measures.
See every vulnerability recorded for libgetdata →
FAQ
The vulnerability is a heap memory corruption issue that can lead to arbitrary code execution or privilege escalation when processing malicious dirfile databases.
The vulnerability affects libgetdata version 0.10.0 and earlier versions. Users should update to version 0.10.0-10 or later.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Simply upload your manifest file like package-lock.json to check for vulnerabilities.
Yes, avoid using libgetdata with untrusted dirfile databases and implement input validation to sanitize inputs.
Detailed information can be found in the Debian CVE database and through security advisories related to libgetdata.
References
Related vulnerabilities
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