CVE-2020-11939
9.8
CRITICAL
CVSS 3.1
EPSS 8.3%
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.
How to fix CVE-2020-11939
To remediate CVE-2020-11939, upgrade the affected package to a fixed version below.
- —upgrade to 3.4-1 or later
Is CVE-2020-11939 being exploited?
Moderate — EPSS is 8.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 3.4-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |