SecuriTricks - CVE-2025-13601

Description

A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.

Product(s) Impacted

Vendor	Product	Versions
Glib	Glib	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	glib	glib	/	/	/	/	/	/	/	/

References

https://access.redhat.com/security/cve/CVE-2025-13601

https://bugzilla.redhat.com/show_bug.cgi?id=2416741

https://gitlab.gnome.org/GNOME/glib/-/issues/3827

https://gitlab.gnome.org/GNOME/glib/-/merge_requests/4914

CVSS Score

7.7 / 10

CVSS Data - 3.1

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: HIGH
Availability Impact: HIGH

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

View Vector String

Timeline

Published: Nov. 26, 2025, 3:15 p.m.
Last Modified: Nov. 26, 2025, 3:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

secalert@redhat.com

CVE-2025-13601