How severe is CVE-2019-19308?

CVE-2019-19308 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-19308 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19308?

CVE-2019-19308 affects Gnome Gnome-font-viewer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19308?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-19308 published?

CVE-2019-19308 was published on 2019-11-27 and last updated on 2026-06-17.

CVE-2019-19308

CVE-2019-19308 is a medium-severity vulnerability in Gnome Gnome-font-viewer with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Gnome Gnome-font-viewer
Published: 2019-11-27
Last modified: 2026-06-17

Description

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).

Frequently asked questions

What is 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).
How severe is CVE-2019-19308?: CVE-2019-19308 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-19308 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19308?: CVE-2019-19308 affects Gnome Gnome-font-viewer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19308?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-19308 published?: CVE-2019-19308 was published on 2019-11-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnome:gnome-font-viewer:3.34.0:*:*:*:*:*:*:*

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