GNOME GLib up to 2.84.1 glib/gstring.c g_string_insert_unichar buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in GNOME GLib up to 2.84.1. Affected by this vulnerability is the function g_string_insert_unichar of the file glib/gstring.c. The manipulation results in buffer overflow. This vulnerability is known as CVE-2025-4373. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in GNOME GLib up to 2.84.1. Affected is the function g_string_insert_unichar of the file glib/gstring.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2025-4373 since 05/06/2025. The exploitability is told to be easy. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 241039 (SUSE SLED15 / SLES15 / openSUSE 15 Security Update : glib2 (SUSE-SU-2025:02167-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.84.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (241039), EUVD (EUVD-2025-13592) and CERT Bund (WID-SEC-2025-1546). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • Red Hat OpenShift
  • IBM Sterling Connect:Direct

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.8
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 241039
Nessus Name: SUSE SLED15 / SLES15 / openSUSE 15 Security Update : glib2 (SUSE-SU-2025:02167-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GLib 2.84.2

Timelineinfo

05/06/2025 🔍
05/06/2025 +0 days 🔍
05/06/2025 +0 days 🔍
08/08/2025 +94 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2025-4373 (🔍)
GCVE (CVE): GCVE-0-2025-4373
GCVE (VulDB): GCVE-100-307560
EUVD: 🔍
CERT Bund: WID-SEC-2025-1546 - Red Hat Enterprise Linux (GLib): Schwachstelle ermöglicht Denial of Service

Entryinfo

Created: 05/06/2025 07:24
Updated: 08/08/2025 17:46
Changes: 05/06/2025 07:24 (54), 06/04/2025 19:37 (1), 07/01/2025 13:13 (2), 07/14/2025 17:45 (13), 07/15/2025 11:02 (7), 08/08/2025 17:46 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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