CVE-2018-17433 : Security Advisory and Response

An issue was found in the HDF HDF5 library version up to 1.10.3, in the function ReadGifImageDesc() located in gifread.c. The vulnerability is related to a heap-based buffer overflow which can be exploited by attackers. They can achieve a denial of service attack by using a specially crafted HDF5 file. This problem occurs specifically when converting a GIF file to an HDF file.

Understanding CVE-2018-17433

This CVE identifies a heap-based buffer overflow vulnerability in the HDF HDF5 library.

What is CVE-2018-17433?

The vulnerability allows attackers to trigger a denial of service by exploiting a crafted HDF5 file during the conversion of a GIF file to an HDF file.

The Impact of CVE-2018-17433

The vulnerability can lead to a denial of service attack, potentially disrupting the functionality of systems using the affected HDF5 library.

Technical Details of CVE-2018-17433

The technical details of the CVE provide insight into the specific aspects of the vulnerability.

Vulnerability Description

The vulnerability is a heap-based buffer overflow in the ReadGifImageDesc() function in gifread.c within the HDF HDF5 library up to version 1.10.3.

Affected Systems and Versions

Product: HDF HDF5 library
Vendor: N/A
Versions affected: Up to 1.10.3

Exploitation Mechanism

Attackers can exploit the heap-based buffer overflow by using a specially crafted HDF5 file during the conversion process from GIF to HDF.

Mitigation and Prevention

Mitigation strategies are crucial to address and prevent the exploitation of vulnerabilities.

Immediate Steps to Take

Update the HDF5 library to a patched version that addresses the buffer overflow vulnerability.
Avoid opening untrusted HDF5 files, especially those originating from unknown or unverified sources.

Long-Term Security Practices

Regularly monitor for security updates and patches for the HDF5 library.
Implement secure coding practices to prevent buffer overflows and other common vulnerabilities.

Patching and Updates

Stay informed about security advisories related to the HDF5 library and apply patches promptly to mitigate known vulnerabilities.