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Fencer Vulns
medium 5.5

CVE-2020-36774 json

plugins/gtk+/glade-gtk-box.c in GNOME Glade before 3.38.1 and 3.39.x before 3.40.0 mishandles widget rebuilding for GladeGtkBox, leading to…

published 2024-02-19 2 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24215

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

plugins/gtk+/glade-gtk-box.c in GNOME Glade before 3.38.1 and 3.39.x before 3.40.0 mishandles widget rebuilding for GladeGtkBox, leading to a denial of service (application crash).

Patch / fix

  • gnome glade 3.38.1, 3.40.0
  • glade Debian 13, Debian 12 3.38.2-1

debian advisories DEBIAN-CVE-2020-36774

  • glade SLE Software Development Kit 12 SP5 3.20.0-7.3.1

suse advisories SUSE-SU-2024:0983-1

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-2020-36774 updated cvss 3.3

glade: segmentation fault in glade_gtk_box_post_create()

  • Red Hat Enterprise Linux 6 glade3, glade3-libgladeui Red Hat Enterprise Linux 7 glade, glade3, glade-libs, glade3-libgladeui
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 glade, glade-libs Red Hat Enterprise Linux 9 glade, glade-libs
    affected: workaround, no fix available “Fix deferred”

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

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • gnome glade

Classification

Weakness
  • CWE-664 Improper Control of a Resource Through its Lifetime

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.