CVE-2021-45832 : Vulnerability Insights and Analysis

A Stack-based Buffer Overflow Vulnerability in HDF5 1.13.1-1 can lead to a Denial of Service.

Understanding CVE-2021-45832

What is CVE-2021-45832?

This CVE describes a Stack-based Buffer Overflow Vulnerability in HDF5 1.13.1-1, specifically in hdf5/src/H5Eint.c, resulting in a context-dependent Denial of Service.

The Impact of CVE-2021-45832

The vulnerability could be exploited to cause a Denial of Service attack on systems running the affected version of HDF5.

Technical Details of CVE-2021-45832

Vulnerability Description

The vulnerability is due to a stack-based buffer overflow present in HDF5 1.13.1-1 at hdf5/src/H5Eint.c, enabling malicious actors to trigger a DoS condition.

Affected Systems and Versions

Product: HDF5
Vendor: N/A
Versions: 1.13.1-1

Exploitation Mechanism

The vulnerability can be exploited by crafting a specific input that exceeds the buffer boundaries, leading to a stack-based buffer overflow and potential Denial of Service.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor vendor communications for updates on this vulnerability.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Ensure to update HDF5 to a non-vulnerable version to prevent the exploitation of this stack-based buffer overflow.