Buffer Overflow Vulnerability in GL.iNet Devices
CVE-2023-31475

9.8CRITICAL

Key Information:

Vendor

Gl-inet

Status
Gl-s20 Firmware
Vendor
CVE Published:
11 May 2023

What is CVE-2023-31475?

A buffer overflow vulnerability exists in GL.iNet devices prior to version 3.216 due to improper handling of data in the guci2_get() function. When a user requests an item from a UCI context, the value is assigned to a character pointer without sufficient buffer size checks. This flaw can lead to unintended data exposure and may allow attackers to execute arbitrary code, compromising the security of the device.

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References

https://www.gl-inet.com
https://github.com/gl-inet/CVE-issues/blob/main/3.215/Buf...
https://justinapplegate.me/2023/glinet-CVE-2023-31475/

EPSS Score

23% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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