| Name | CVE-2020-11939 |
| Description | In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer overflows that result in a controlled remote heap overflow in concat_hash_string in ssh.c. Due to the granular nature of the overflow primitive and the ability to control both the contents and layout of the nDPI library's heap memory through remote input, this vulnerability may be abused to achieve full Remote Code Execution against any network inspection stack that is linked against nDPI and uses it to perform network traffic analysis. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 972050 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ndpi (PTS) | bookworm | 4.2-2 | fixed |
| sid, trixie | 4.2-2.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| ndpi | source | jessie | (not affected) | | | |
| ndpi | source | stretch | (not affected) | | | |
| ndpi | source | buster | (not affected) | | | |
| ndpi | source | (unstable) | 3.4-1 | | | 972050 |
Notes
[buster] - ndpi <not-affected> (Introduced in 3.0)
[stretch] - ndpi <not-affected> (Introduced in 3.0)
[jessie] - ndpi <not-affected> (Introduced in 3.0)
https://github.com/ntop/nDPI/commit/7ce478a58b4dd29a8d1e6f4e9df2f778613d9202 (3.4)
https://securitylab.github.com/advisories/GHSL-2020-051_052-ntop-ndpi