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CVE-2023-32643

Published: 7 June 2023

A flaw was found in GLib. The GVariant deserialization code is vulnerable to a heap buffer overflow introduced by the fix for CVE-2023-32665. This bug does not affect any released version of GLib, but does affect GLib distributors who followed the guidance of GLib developers to backport the initial fix for CVE-2023-32665.

Notes

AuthorNote
mdeslaur
same fixes as CVE-2023-32636

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
glib2.0
Launchpad, Ubuntu, Debian
trusty
Released (2.40.2-0ubuntu1.1+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
focal
Released (2.64.6-1~ubuntu20.04.6)
jammy
Released (2.72.4-0ubuntu2.2)
kinetic
Released (2.74.3-0ubuntu1.2)
lunar Not vulnerable
(2.76.1-1)
upstream
Released (2.75.1,2.74.4)
mantic Not vulnerable
(2.76.1-1)
bionic
Released (2.56.4-0ubuntu0.18.04.9+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial
Released (2.48.2-0ubuntu4.8+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
Patches:
upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/3163
upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/3164 (2.74)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H