PT-2026-5286 · Gnome · Gnome-Font-Viewer

Cody Winkler · Published 2020-01-01 · Updated 2026-05-26 · CVE-2020-37011

Positive Technologies (AI Summary)

CVSS v4.0

8.4

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Gnome Fonts Viewer version 3.34.0

Description Gnome Fonts Viewer version 3.34.0 contains a heap corruption issue that allows attackers to trigger an out-of-bounds write by using a malicious TTF font file. An attacker can create a specially crafted TTF file with an oversized pattern, which can lead to an infinite malloc() loop and potentially crash the gnome-font-viewer process.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-37011

Affected Products

Gnome-Font-Viewer

References · 12

• 🔥 https://exploit-db.com/exploits/48803 · Exploit
• https://ubuntu.com/security/CVE-2020-37011 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-37011 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-37011 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-37011 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-37011 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-37011 · Vendor Advisory
• https://vulncheck.com/advisories/gnome-fonts-viewer-heap-corruption · Note
• https://apps.gnome.org/FontViewer · Note
• https://t.me/cveNotify/164699 · Telegram Post
• https://help.gnome.org · Note
• https://t.me/CVEtracker/43235 · Telegram Post