CVE-2025-4373

EUVD-2025-13592
A flaw was found in GLib, which is vulnerable to an integer overflow in the g_string_insert_unichar() function. When the position at which to insert the character is large, the position will overflow, leading to a buffer underwrite.
Buffer Underflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.8 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
redhatCNA
4.8 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 72%
Debian logo
Debian Releases
Debian Product
Codename
glib2.0
bookworm
2.74.6-2+deb12u8
fixed
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
2.66.8-1+deb11u8
fixed
forky
2.87.2-3
fixed
sid
2.87.2-3
fixed
trixie
2.84.4-3~deb13u2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
glib2.0
bionic
needs-triage
focal
Fixed 2.64.6-1~ubuntu20.04.9
released
jammy
Fixed 2.72.4-0ubuntu2.5
released
noble
Fixed 2.80.0-6ubuntu3.4
released
oracular
Fixed 2.82.1-0ubuntu1.1
released
plucky
Fixed 2.84.1-1ubuntu0.1
released
questing
not-affected
trusty
needs-triage
xenial
needs-triage