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Use After Free in TiffSubIfd

Moderate
kevinbackhouse published GHSA-38h4-fx85-qcx7 Feb 18, 2025

Package

Exiv2

Affected versions

0.28.0 to 0.28.4

Patched versions

0.28.5

Description

Impact

A heap buffer overflow was found in Exiv2 versions v0.28.0 to v0.28.4. Versions prior to v0.28.0, such as v0.27.7, are not affected. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file.

Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as fixiso.

Patches

The bug is fixed in version v0.28.5.

References

Issue: #3168
Fix: #3174

For more information

Please see our security policy for information about Exiv2 security.

Severity

Moderate

CVE ID

CVE-2025-26623

Weaknesses

Credits