DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh
Debian Bugs972050

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ndpi (PTS)stretch1.8-1fixed
stretch (security)1.8-1+deb9u1fixed
bullseye, sid3.4-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ndpisourcejessie(not affected)
ndpisourcestretch(not affected)
ndpisourcebuster(not affected)


[buster] - ndpi <not-affected> (Introduced in 3.0)
[stretch] - ndpi <not-affected> (Introduced in 3.0)
[jessie] - ndpi <not-affected> (Introduced in 3.0) (3.4)

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