CVE-2025-4373

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
NISTNIST
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
CISA-ADPADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
Debian logo
Debian Releases
Debian Product
Codename
glib2.0
bullseye
postponed
bookworm
no-dsa
bullseye (security)
vulnerable
bookworm (security)
vulnerable
sid
2.84.2-1
fixed
trixie
2.84.2-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
glib2.0
plucky
Fixed 2.84.1-1ubuntu0.1
released
oracular
Fixed 2.82.1-0ubuntu1.1
released
noble
Fixed 2.80.0-6ubuntu3.4
released
jammy
Fixed 2.72.4-0ubuntu2.5
released
focal
Fixed 2.64.6-1~ubuntu20.04.9
released
bionic
needs-triage
xenial
needs-triage
trusty
needs-triage