CVE-2021-45833 : Security Advisory and Response

This CVE-2021-45833 article provides details about a Stack-based Buffer Overflow Vulnerability in HDF5 1.13.1-1 that leads to a Denial of Service.

Understanding CVE-2021-45833

This section delves into the specifics of the CVE.

What is CVE-2021-45833?

A Stack-based Buffer Overflow Vulnerability in HDF5 1.13.1-1 via the H5D__create_chunk_file_map_hyper function in /hdf5/src/H5Dchunk.c causes a Denial of Service.

The Impact of CVE-2021-45833

The vulnerability can result in a Denial of Service attack, which is context-dependent.

Technical Details of CVE-2021-45833

Here you will find technical aspects of the CVE.

Vulnerability Description

The vulnerability lies in HDF5 1.13.1-1 due to a Stack-based Buffer Overflow when invoking the H5D__create_chunk_file_map_hyper function.

Affected Systems and Versions

Affected Versions: HDF5 1.13.1-1

Exploitation Mechanism

Attackers can exploit this vulnerability to orchestrate a Denial of Service attack in affected systems.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-45833.

Immediate Steps to Take

Consider updating HDF5 to a patched version to eliminate the vulnerability.
Implement proper input validation measures to prevent buffer overflow attacks.

Long-Term Security Practices

Conduct regular security assessments to identify and address vulnerabilities promptly.
Stay informed about security updates and patches released by HDF5.

Patching and Updates

Apply security patches provided by HDF5 promptly to safeguard systems from potential exploits.