CVE-2020-11940 Memory corruption in n/a

High 7.5 Published Updated

A network attacker can trigger an out-of-bounds read in the nDPI library via malformed SSH messages, potentially causing crashes or leaking memory.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-11940?

CVE-2020-11940 is a high-severity memory corruption vulnerability in n/a, published on 23 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.

Weakness: CWE-125

Which versions are affected by CVE-2020-11940?

It affects 1 product.

Products include Ntop Ndpi.

How do I fix CVE-2020-11940?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-11940 being exploited?

There is no known exploitation of CVE-2020-11940 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-11940, GHSA-h3c2-96hp-53g3.

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