CVE-2020-11939
CVSS v3
9.8
CRITICAL
EPSS Score
8.3 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2020-04-23
Frequently asked questions
What is CVE-2020-11939?
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.
Is CVE-2020-11939 actively exploited?
Active exploitation of CVE-2020-11939 has not been confirmed. The EPSS score is 8.3%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-11939?
CVE-2020-11939 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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