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Fedora 42: FEDORA-2025-6b4a9c1dd1 critical: optipng buffer overflow

fedora
Calendar Grey June 24, 2025
Dist Fedora Esm H88
The latest security notice for Fedora 42 emphasizes a vital update for optipng that tackles a severe buffer overflow issue. Prompt attention is strongly advised.
Update to 7.9.1

Summary

OptiPNG is a PNG optimizer that recompresses image files to a smaller size,

without losing any information. This program also converts external formats

(BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks

and corrections.

Update Information:

Update to 7.9.1

Topics%20covered

Topics Covered

security advisory fedora buffer overflow vulnerability important optipng

Change Log

* Sun Jun 15 2025 Peter Hanecak - 7.9.1-1 - Update to 7.9.1

References


[ 1 ] Bug #2242460 - CVE-2023-43907 optipng: global buffer overflow via the 'buffer' variable at gifread.c. [epel-all] https://bugzilla.redhat.com/show_bug.cgi?id=2242460 [ 2 ] Bug #2359202 - optipng-7.9.1 is available https://bugzilla.redhat.com/show_bug.cgi?id=2359202

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-6b4a9c1dd1' 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
critical
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Name: optipng
Product: Fedora 42
Version: 7.9.1
Release: 1.fc42
URL: https://optipng.sourceforge.net/
Summary: PNG optimizer and converter

Topics%20covered

Topics Covered

security advisory fedora buffer overflow vulnerability important optipng

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