Bug#1104930: glib2.0: CVE-2025-4373

[Salvatore Bonaccorso]

Source: glib2.0
Version: 2.84.1-2
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/glib/-/issues/3677
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for glib2.0.

CVE-2025-4373[0]:
| A flaw was found in GLib, which is vulnerable to an integer overflow
| in the g_string_insert_unichar() function. When the position at
| which to insert the character is large, the position will overflow,
| leading to a buffer underwrite.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-4373
    https://www.cve.org/CVERecord?id=CVE-2025-4373
[1] https://gitlab.gnome.org/GNOME/glib/-/issues/3677
[2] https://gitlab.gnome.org/GNOME/glib/-/merge_requests/4588
[3] https://gitlab.gnome.org/GNOME/glib/-/merge_requests/4592

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore