CVE-2020-37011

high

Description

Gnome Fonts Viewer 3.34.0 contains a heap corruption vulnerability that allows attackers to trigger an out-of-bounds write by crafting a malicious TTF font file. Attackers can generate a specially crafted TTF file with an oversized pattern to cause an infinite malloc() loop and potentially crash the gnome-font-viewer process.

References

https://www.vulncheck.com/advisories/gnome-fonts-viewer-heap-corruption

https://www.exploit-db.com/exploits/48803

https://help.gnome.org/

https://apps.gnome.org/FontViewer/

Details

Source: Mitre, NVD

Published: 2026-01-29

Updated: 2026-01-29

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 8.4

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00028