A flaw was found in how GLib’s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn’t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00072.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Gnome
  • Glib
Redhat
  • Enterprise Linux

Configuration 1 [-]

cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-18285 A flaw was found in how GLib’s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn’t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.
Fixes

Solution

No solution given by the vendor.

Workaround

Currently, no mitigation is available for this vulnerability.

References
Link Providers
https://access.redhat.com/security/cve/CVE-2025-6052 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2372666 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-6052 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-6052 cve-icon
History

Wed, 20 Aug 2025 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Gnome
Gnome glib
CPEs cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*
Vendors & Products Gnome
Gnome glib

Tue, 15 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00051}

 epss

{'score': 0.00056}

Sat, 14 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Low

Fri, 13 Jun 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 13 Jun 2025 15:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in how GLib’s GString manages memory when adding data to strings. If a string is already very large, combining it with more input can cause a hidden overflow in the size calculation. This makes the system think it has enough memory when it doesn’t. As a result, data may be written past the end of the allocated memory, leading to crashes or memory corruption.
Title Glib: integer overflow in g_string_maybe_expand() leading to potential buffer overflow in glib gstring
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-190
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-08-20T17:24:19.536Z

Reserved: 2025-06-13T12:02:40.494Z

Link: CVE-2025-6052

cve-icon Vulnrichment

Updated: 2025-06-13T15:58:23.496Z

cve-icon NVD

Status : Analyzed

Published: 2025-06-13T16:15:28.230

Modified: 2025-08-20T17:27:24.260

Link: CVE-2025-6052

cve-icon Redhat

Severity : Low

Publid Date: 2025-06-13T00:00:00Z

Links: CVE-2025-6052 - Bugzilla

cve-icon OpenCVE Enrichment

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