Buffer overflow in Gl-Inet Gl-A1300
CVE-2023-31475
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.137 (96.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.137 · newest: 0.137 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.gl-inet.com (Vendor Advisory)
- github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.md (Exploit, Third Party Advisory)
- justinapplegate.me/2023/glinet-CVE-2023-31475/
Frequently asked questions
- What is CVE-2023-31475?
- CVE-2023-31475 is a critical-severity vulnerability in Gl-Inet Gl-A1300, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2023-05-11.
- How severe is CVE-2023-31475?
- Critical severity. CVSS v3 base score is 9.8 out of 10.