PT-2023-23354 · Gl.Inet · Gl.Inet

Published 2023-05-11 · Updated 2023-06-12 · CVE-2023-31475

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions GL.iNet devices versions prior to 3.216

Description An issue was discovered where the function guci2 get() found in libglutil.so has a buffer overflow. This occurs 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.

Recommendations For versions prior to 3.216, update to version 3.216 or later to resolve the issue. As a temporary workaround, consider restricting access to the guci2 get() function until a patch is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2023-31475

Affected Products

Gl.Inet

References · 5

• 🔥 https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.md · Exploit
• https://gl-inet.com · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-31475 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-31475 · Security Note
• https://justinapplegate.me/2023/glinet-CVE-2023-31475 · Note