Description
In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in lib/protocols/h323.c, as demonstrated by a payload packet length that is too short.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ndpi | 3.4-1 | — |
| Debian 13 | ndpi | 3.4-1 | — |
| Debian 12 | ndpi | 3.4-1 | — |
| Debian 10 | ndpi | 2.6-3+deb10u1 | DLA-3084-1 |
Advisories 1
- DLA-3084-1 ndpi - security update Debian Security (DSA / DLA) · Mar 9, 2026