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Fencer Vulns
medium 5.5

CVE-2019-19308 json

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 tha…

published 2019-11-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8932

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

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).

Patch / fix

  • gnome-sushi Debian 14, Debian 13, Debian 12 3.38.0-1
  • gnome-font-viewer Debian 14, Debian 13, Debian 12 3.34.0-2

debian advisories DEBIAN-CVE-2019-19308

  • gnome-font-viewer Ubuntu 20.04 LTS 3.34.0-2

ubuntu advisories UBUNTU-CVE-2019-19308

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-19308 updated cvss 3.3

gnome-font-viewer: NULL pointer dereference in text_to_glyphs in sushi-font-widget.c

  • Red Hat Enterprise Linux 7 gnome-font-viewer Red Hat Enterprise Linux 8 gnome-font-viewer
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.