#1149051 ndpi: CVE-2026-88357

#1149051#5
Date:
2026-09-26 11:26:42 UTC
From:
To:
Hi,

The following vulnerability was published for ndpi.

CVE-2026-88357[0]:
| nDPI 5.1.0 contains a memory access issue in the DNS dissector and
| serializer deserialization code. Specially crafted network input can
| cause byte-buffer addresses at odd offsets to be cast to uint16_t or
| wider integer pointers and directly dereferenced without alignment
| checks. This results in undefined behavior and can cause process
| termination in UBSan-instrumented builds or on strict-alignment
| architectures, leading to denial of service.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-88357
https://www.cve.org/CVERecord?id=CVE-2026-88357
[1] https://github.com/ntop/nDPI/issues/3213
[2] https://github.com/ntop/nDPI/pull/3231

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore