Skip to content
fr Sign in
4.8 Medium

CVE-2025-4373 Glib: buffer underflow on glib through glib/gstring.c via function g_string_insert_unichar

Description

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.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and without any user action; the impact on data or service is limited.

Attack vector
Network
Attack complexity
High
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 8.2 Advanced Update Support Versions not published
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.6 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Show the 30 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Extended Update Support Versions not published
Red Hat Insights proxy 1.5 1.5 earliest → < 1.5.5-1754504343 1.5.5-1754504343
Red Hat OpenShift distributed tracing 3.6.1 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat OpenShift distributed tracing 3.6.0 Versions not published
RUGGEDCOM RST2428P 3.3 earliest → < 3.3 3.3
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family 3.3 earliest → < 3.3 3.3
SCALANCE XCH328 3.3 earliest → < 3.3 3.3
SCALANCE XCM324 3.3 earliest → < 3.3 3.3
SCALANCE XCM328 3.3 earliest → < 3.3 3.3
SCALANCE XCM332 3.3 earliest → < 3.3 3.3
SCALANCE XRH334 (24 V DC, 8xFO, CC) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (230 V AC, 12xFO) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (230 V AC, 8xFO) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (24 V DC, 12xFO) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (24 V DC, 8xFO) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (2x230 V AC, 12xFO) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (2x230 V AC, 8xFO) 3.3 earliest → < 3.3 3.3
SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) 3.3 earliest → < 3.3 3.3
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.5 → latest No fix stated
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.5 → latest No fix stated
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.5 → latest No fix stated
Red Hat In-Vehicle Operating System 1 Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Red Hat Enterprise Linux 10

The 1454 CVEs of Red Hat Enterprise Linux 10 →
CVE-2026-123151 Gdb: gdb: stack buffer overflow in parse_tsv_definition via stale rs->buf tail Not rated CVE-2026-121997 Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mismatch 8.1 High CVE-2026-121996 Gdb: gdbserver: heap disclosure and wild pointer in gdb_parse_agent_expr via untrusted agent-expression length 8.2 High CVE-2026-121995 Gdb: gdb: stack buffer overflow in parse_tracepoint_definition via stale rs->buf tail 7.5 High
Track this CVE