CVE-2020-21588 Memory corruption in n/a

Medium 5.5 Published 2 Apr 2021 Updated 4 Aug 2024

Local attackers can cause a denial of service in Core FTP LE by inputting a long string into the username field, triggering a buffer overflow.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-21588?

CVE-2020-21588 is a medium-severity memory corruption vulnerability in n/a, published on 2 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer overflow in Core FTP LE v2.2 allows local attackers to cause a denial or service (crash) via a long string in the Setup->Users->Username editbox.

Weakness: CWE-120

Which versions are affected by CVE-2020-21588?

It affects 1 product.

Products include Coreftp Core Ftp.

How do I fix CVE-2020-21588?

No fix has been published for CVE-2020-21588 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2020-21588 being exploited?

There is no known exploitation of CVE-2020-21588 in the wild and no public exploit code.

Sources

Also known as GHSA-682r-x8qw-hmq5.