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Fedora 43 glib2 Critical Advisory ID 2026-5637749c07 CVE-2026-0988

fedora
Calendar Grey March 21, 2026
Dist Fedora Esm H88
Explore the critical patch for glib2 in Fedora 43 addressing integer overflow issues that lead to DoS.
Add patch for CVE-2026-0988 (Integer overflow in g_buffered_input_stream_peek() leads to segmentation fault)

Summary

GLib is the low-level core library that forms the basis for projects

such as GTK+ and GNOME. It provides data structure handling for C,

portability wrappers, and interfaces for such runtime functionality

as an event loop, threads, dynamic loading, and an object system.

Update Information:

Add patch for CVE-2026-0988 (Integer overflow in g_buffered_input_stream_peek() leads to segmentation fault)

Topics%20covered

Topics Covered

security advisory denial of service fedora critical integer overflow glib2

Change Log

* Thu Mar 19 2026 Milan Crha - 2.86.4-2 - Add patch for CVE-2026-0988 (Integer overflow in g_buffered_input_stream_peek() leads to segmentation fault)

References


[ 1 ] Bug #2429913 - CVE-2026-0988 glib2: GLib: Denial of Service via Integer Overflow in g_buffered_input_stream_peek() [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2429913

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-5637749c07' 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
Lowest
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Critical

Name: glib2
Product: Fedora 43
Version: 2.86.4
Release: 2.fc43
URL: https://www.gtk.org
Summary: A library of handy utility functions

Topics%20covered

Topics Covered

security advisory denial of service fedora critical integer overflow glib2

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