First published: Fri Nov 17 2023(Updated: )
An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a show_preauthpage NULL pointer dereference that can be triggered with a crafted GET HTTP with a missing User-Agent header. Triggering this issue results in crashing OpenNDS (a Denial-of-Service condition).
|Affected Software||Affected Version||How to fix|
|OpenNDS Captive Portal||<10.1.2|
CVE-2023-38320 is an issue discovered in OpenNDS Captive Portal before version 10.1.2, which can be triggered by a crafted GET HTTP request without a User-Agent header, leading to a crash and Denial-of-Service condition.
CVE-2023-38320 triggers a NULL pointer dereference in OpenNDS Captive Portal, causing a crash and resulting in a Denial-of-Service condition.
CVE-2023-38320 has a severity rating of high, with a CVSS score of 7.5.
To fix CVE-2023-38320, update OpenNDS Captive Portal to version 10.1.2 or later.
You can find more information about CVE-2023-38320 on the [OpenNDS releases page](https://github.com/openNDS/openNDS/releases/tag/v10.1.2).