What is CVE-2019-19308?

CVE-2019-19308 is a medium-severity vulnerability in GNOME Gnome-Font-Viewer, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2019-11-27.

How severe is CVE-2019-19308?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in GNOME Gnome-Font-Viewer

CVE-2019-19308

In text_to_glyphs in sushi-font-widget.c in gnome-font-viewer 3.34.0, there is a NULL pointer dereference while parsing a TTF font file that lacks a name section (due to a g_strconcat call that returns NULL).

Published 2019-11-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

GNOME Gnome-Font-Viewer — versions 3.34.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/GNOME/gnome-font-viewer/blob/919dfbe684b75904563b8c6723c9778a4e00aad… (Third Party Advisory)
gitlab.gnome.org/GNOME/gnome-font-viewer/issues/17 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19308?: CVE-2019-19308 is a medium-severity vulnerability in GNOME Gnome-Font-Viewer, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2019-11-27.
How severe is CVE-2019-19308?: Medium severity. CVSS v3 base score is 5.5 out of 10.