CVE-2023-31475 — CRITICAL (9.8)

Q: How severe is CVE-2023-31475?

CVE-2023-31475 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2023-31475?

Check the references section above for vendor advisories and patch information. Affected products include: Gl-Inet Gl-S20 Firmware, Gl-Inet Gl-S20, Gl-Inet Gl-X3000 Firmware, Gl-Inet Gl-X3000, Gl-Inet Gl-Mt3000 Firmware.

Vulnerability Description

An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer overflow when an item is requested from a UCI context, and the value is pasted into a char pointer to a buffer without checking the size of the buffer.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gl-Inet	Gl-S20 Firmware	< 3.216
Gl-Inet	Gl-S20	-
Gl-Inet	Gl-X3000 Firmware	< 3.216
Gl-Inet	Gl-X3000	-
Gl-Inet	Gl-Mt3000 Firmware	< 3.216
Gl-Inet	Gl-Mt3000	-
Gl-Inet	Gl-Mt2500 Firmware	< 3.216
Gl-Inet	Gl-Mt2500	-
Gl-Inet	Gl-Mt2500A Firmware	< 3.216
Gl-Inet	Gl-Mt2500A	-
Gl-Inet	Gl-Axt1800 Firmware	< 3.216
Gl-Inet	Gl-Axt1800	-
Gl-Inet	Gl-A1300 Firmware	< 3.216
Gl-Inet	Gl-A1300	-
Gl-Inet	Gl-Ax1800 Firmware	< 3.216
Gl-Inet	Gl-Ax1800	-
Gl-Inet	Gl-Sft1200 Firmware	< 3.216
Gl-Inet	Gl-Sft1200	-
Gl-Inet	Gl-Mt1300 Firmware	< 3.216
Gl-Inet	Gl-Mt1300	-

Related Weaknesses (CWE)

CWE-120

References

https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.mdExploitThird Party Advisory
https://justinapplegate.me/2023/glinet-CVE-2023-31475/
https://www.gl-inet.comVendor Advisory
https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.mdExploitThird Party Advisory
https://justinapplegate.me/2023/glinet-CVE-2023-31475/
https://www.gl-inet.comVendor Advisory

FAQ

What is CVE-2023-31475?

CVE-2023-31475 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered on GL.iNet devices before 3.216. The function guci2_get() found in libglutil.so has a buffer overflow when an item is requested from a UCI context, and the value is pasted into...

How severe is CVE-2023-31475?

CVE-2023-31475 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-31475?

Check the references section above for vendor advisories and patch information. Affected products include: Gl-Inet Gl-S20 Firmware, Gl-Inet Gl-S20, Gl-Inet Gl-X3000 Firmware, Gl-Inet Gl-X3000, Gl-Inet Gl-Mt3000 Firmware.