Paper/Archive/CVE-2026-58016

CVE-2026-58016

GNOME GLib — Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

Description · from the CVE record

A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a `node` element nested within other elements like `method`, `signal`, `property` or `arg`. This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.

Affected

ProductAffectedFixed inSource
GLib< 2.89.02.89.0CNA
Red Hat Enterprise Linux 10see advisory0:2.80.4-12.el10_2.14CNA
Red Hat Enterprise Linux 10.0 Extended Update Supportsee advisory0:2.80.4-4.el10_0.10CNA
Red Hat Enterprise Linux 7 Extended Lifecycle Supportsee advisory0:2.56.1-13.el7_9CNA
Red Hat Enterprise Linux 8see advisory0:2.70.1-9.el8_10CNA
Red Hat Enterprise Linux 8see advisory0:2.56.4-170.el8_10CNA
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportsee advisory0:2.56.4-10.el8_4.6CNA
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onsee advisory0:2.56.4-10.el8_4.6CNA
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportsee advisory0:2.56.4-158.el8_6.6CNA
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onsee advisory0:2.56.4-158.el8_6.6CNA
Red Hat Enterprise Linux 8.8 Telecommunications Update Servicesee advisory0:2.56.4-165.el8_8.1CNA
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionssee advisory0:2.56.4-165.el8_8.1CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
redhat (CNA)7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

advisoryaccess.redhat.com/errata/RHSA-2026:42063advisoryaccess.redhat.com/errata/RHSA-2026:42089advisoryaccess.redhat.com/errata/RHSA-2026:42090advisoryaccess.redhat.com/errata/RHSA-2026:44481advisoryaccess.redhat.com/errata/RHSA-2026:46836advisoryaccess.redhat.com/errata/RHSA-2026:49512advisoryaccess.redhat.com/errata/RHSA-2026:51175advisoryaccess.redhat.com/errata/RHSA-2026:51176advisoryaccess.redhat.com/errata/RHSA-2026:51177advisoryaccess.redhat.com/errata/RHSA-2026:51181advisoryaccess.redhat.com/errata/RHSA-2026:51182advisoryaccess.redhat.com/errata/RHSA-2026:51183advisoryaccess.redhat.com/errata/RHSA-2026:51184advisoryaccess.redhat.com/errata/RHSA-2026:51185advisoryaccess.redhat.com/errata/RHSA-2026:53371advisoryaccess.redhat.com/errata/RHSA-2026:58981advisoryaccess.redhat.com/errata/RHSA-2026:72394advisoryaccess.redhat.com/errata/RHSA-2026:72395advisoryaccess.redhat.com/errata/RHSA-2026:72399advisoryaccess.redhat.com/errata/RHSA-2026:72470advisoryaccess.redhat.com/errata/RHSA-2026:72475advisoryaccess.redhat.com/errata/RHSA-2026:72476advisoryaccess.redhat.com/errata/RHSA-2026:72502advisoryaccess.redhat.com/errata/RHSA-2026:73909advisoryaccess.redhat.com/errata/RHSA-2026:73959advisoryaccess.redhat.com/errata/RHSA-2026:73960advisoryaccess.redhat.com/errata/RHSA-2026:73961advisoryaccess.redhat.com/errata/RHSA-2026:73962advisoryaccess.redhat.com/errata/RHSA-2026:74458advisoryaccess.redhat.com/errata/RHSA-2026:74459advisoryaccess.redhat.com/errata/RHSA-2026:74460advisoryaccess.redhat.com/errata/RHSA-2026:74461advisoryaccess.redhat.com/errata/RHSA-2026:74462advisoryaccess.redhat.com/errata/RHSA-2026:74463advisoryaccess.redhat.com/errata/RHSA-2026:74674advisoryaccess.redhat.com/errata/RHSA-2026:82304advisoryaccess.redhat.com/errata/RHSA-2026:82322advisoryaccess.redhat.com/errata/RHSA-2026:82336advisoryaccess.redhat.com/errata/RHSA-2026:82347advisoryaccess.redhat.com/errata/RHSA-2026:82354advisoryaccess.redhat.com/errata/RHSA-2026:82372advisoryaccess.redhat.com/errata/RHSA-2026:82857advisoryaccess.redhat.com/errata/RHSA-2026:82888refaccess.redhat.com/security/cve/CVE-2026-58016refbugzilla.redhat.com/show_bug.cgi?id=2492257refgitlab.gnome.org/GNOME/glib/-/issues/3932