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Fedora 42: libtiff Important Two Issues Resolved 2025-7d08872494

fedora
Calendar Grey July 31, 2025
Dist Fedora Esm H88
Essential security enhancements for libtiff in Fedora 42 combatting significant buffer overflow and use-after-free vulnerabilities. Upgrade immediately!
fix CVE-2025-8176: use after free in tiffmedian (rhbz#2383821) fix CVE-2025-8177: buffer oveflow in thumbnail setrow when processing malformed TIFF (rhbz#2383827)

Summary

The libtiff package contains a library of functions for manipulating

TIFF (Tagged Image File Format) image format files. TIFF is a widely

used file format for bitmapped images. TIFF files usually end in the

.tif extension and they are often quite large.

The libtiff package should be installed if you need to manipulate TIFF

format image files.

Update Information:

fix CVE-2025-8176: use after free in tiffmedian (rhbz#2383821) fix CVE-2025-8177: buffer oveflow in thumbnail setrow when processing malformed TIFF (rhbz#2383827)

Topics%20covered

Topics Covered

security advisory fedora buffer overflow important libtiff use-after-free

Change Log

* Tue Jul 29 2025 Michal Hlavinka - 4.7.0-6 - fix CVE-2025-8176: use after free in tiffmedian (rhbz#2383821) * Tue Jul 29 2025 Michal Hlavinka - 4.7.0-5 - fix CVE-2025-8177: buffer oveflow in thumbnail setrow when processing malformed TIFF (rhbz#2383827) * Thu Jul 24 2025 Fedora Release Engineering - 4.7.0-4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild

References


[ 1 ] Bug #2383821 - CVE-2025-8176 libtiff: LibTIFF Use-After-Free Vulnerability [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2383821

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-7d08872494' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
Medium
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Critical

Name: libtiff
Product: Fedora 42
Version: 4.7.0
Release: 6.fc42
URL: http://www.simplesystems.org/libtiff/
Summary: Library of functions for manipulating TIFF format image files

Topics%20covered

Topics Covered

security advisory fedora buffer overflow important libtiff use-after-free

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