REDHAT-BUG-2457034: Use After Free

Q: What is the severity of REDHAT-BUG-2457034?

The severity of REDHAT-BUG-2457034 is rated high, with a score of 7.

Q: How do I fix REDHAT-BUG-2457034?

To fix REDHAT-BUG-2457034, it is recommended to upgrade HDF5 to version 1.14.1-3 or later.

Q: What type of vulnerability is REDHAT-BUG-2457034?

REDHAT-BUG-2457034 is a Use After Free vulnerability found in the h5dump helper utility.

Q: What can an attacker do with REDHAT-BUG-2457034?

An attacker can exploit REDHAT-BUG-2457034 by supplying a malicious h5 file to trigger a heap-use-after-free condition.

Q: Which software is affected by REDHAT-BUG-2457034?

The software affected by REDHAT-BUG-2457034 is HDF5 developed by HDF Group.

Published Apr 9, 2026

Updated

HDF5 is software for managing data. In 1.14.1-2 and earlier, a heap-use-after-free was found in the h5dump helper utility. An attacker who can supply a malicious h5 file can trigger a heap use-after-free. The freed object is referenced in a memmove call from H5Tconvstruct. The original object was allocated by H5Dtypeinfoinitphase3 and freed by H5Dtypeinfoterm.

Affected Software

1 affected component

HDF Group HDF5<=1.14.1-2

Event History

Apr 9, 2026

Data Sourced

via Red Hat·08:02 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

What is the severity of REDHAT-BUG-2457034?

The severity of REDHAT-BUG-2457034 is rated high, with a score of 7.

How do I fix REDHAT-BUG-2457034?

To fix REDHAT-BUG-2457034, it is recommended to upgrade HDF5 to version 1.14.1-3 or later.

What type of vulnerability is REDHAT-BUG-2457034?

REDHAT-BUG-2457034 is a Use After Free vulnerability found in the h5dump helper utility.

What can an attacker do with REDHAT-BUG-2457034?

An attacker can exploit REDHAT-BUG-2457034 by supplying a malicious h5 file to trigger a heap-use-after-free condition.

Which software is affected by REDHAT-BUG-2457034?

The software affected by REDHAT-BUG-2457034 is HDF5 developed by HDF Group.