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Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process. A state confusion vulnerability exists in g_dbus_node_info_new_for_xml() in gio/gdbusintrospection.c. When parsing malformed D-Bus introspection XML containing a <node> element nested inside <method>, <signal>, <property>, or <arg> elements, the parser's internal state becomes inconsistent. The nested </interface> closing tag inside the nested <node> steals and resets the shared data->methods (or data->signals/data->properties) array to an empty state. When the outer </method> (or similar) closing tag subsequently calls parse_data_get_method(data, FALSE), it accesses pdata[len - 1] with len == 0, causing an unsigned integer underflow (0u - 1 = 0xFFFFFFFF) and a massive out-of-bounds heap read at offset 0xFFFFFFFF * sizeof(gpointer) (~8 GB before the buffer).
FEDORA-2026-8e39f35701 (mingw-glib2-2.86.5-2.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-8e39f35701
FEDORA-2026-8e39f35701 has been pushed to the Fedora 43 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-8e39f35701` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8e39f35701 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-7bf2937528 has been pushed to the Fedora 44 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-7bf2937528` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-7bf2937528 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-7bf2937528 (mingw-glib2-2.88.2-2.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-8e39f35701 (mingw-glib2-2.86.5-2.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.