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.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
9 CRITICAL
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 96%
VendorProductVersion
gl-inetgl-s20_firmware
𝑥
< 3.216
gl-inetgl-x3000_firmware
𝑥
< 3.216
gl-inetgl-mt3000_firmware
𝑥
< 3.216
gl-inetgl-mt2500_firmware
𝑥
< 3.216
gl-inetgl-mt2500a_firmware
𝑥
< 3.216
gl-inetgl-axt1800_firmware
𝑥
< 3.216
gl-inetgl-a1300_firmware
𝑥
< 3.216
gl-inetgl-ax1800_firmware
𝑥
< 3.216
gl-inetgl-sft1200_firmware
𝑥
< 3.216
gl-inetgl-mt1300_firmware
𝑥
< 3.216
gl-inetgl-e750_firmware
𝑥
< 3.216
gl-inetgl-mv1000_firmware
𝑥
< 3.216
gl-inetgl-mv1000w_firmware
𝑥
< 3.216
gl-inetgl-s10_firmware
𝑥
< 3.216
gl-inetgl-s200_firmware
𝑥
< 3.216
gl-inetgl-s1300_firmware
𝑥
< 3.216
gl-inetgl-sf1200_firmware
𝑥
< 3.216
gl-inetgl-b1300_firmware
𝑥
< 3.216
gl-inetgl-b2200_firmware
𝑥
< 3.216
gl-inetgl-ap1300_firmware
𝑥
< 3.216
gl-inetgl-ap1300lte_firmware
𝑥
< 3.216
gl-inetgl-x1200_firmware
𝑥
< 3.216
gl-inetgl-x750_firmware
𝑥
< 3.216
gl-inetgl-x300b_firmware
𝑥
< 3.216
gl-inetgl-xe300_firmware
𝑥
< 3.216
gl-inetgl-ar750s_firmware
𝑥
< 3.216
gl-inetgl-ar750_firmware
𝑥
< 3.216
gl-inetgl-mifi_firmware
𝑥
< 3.216
gl-inetgl-mt300n-v2_firmware
𝑥
< 3.216
gl-inetgl-ar300m_firmware
𝑥
< 3.216
gl-inetgl-usb150_firmware
𝑥
< 3.216
gl-inetmicrouter-n300_firmware
𝑥
< 3.216
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.md
https://justinapplegate.me/2023/glinet-CVE-2023-31475/
https://www.gl-inet.com
https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buffer_Overflow.md
https://justinapplegate.me/2023/glinet-CVE-2023-31475/
https://www.gl-inet.com