CVE-2020-3343 Cisco AMP for Endpoints Linux Connector and AMP for Endpoints Mac Connector Software Memory Buffer Vulnerability

Medium 5.5 Published 22 May 2020 Updated 15 Nov 2024

A local authenticated attacker can cause a buffer overflow in Cisco AMP for Endpoints, leading to a service crash and restart.

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-2020-3343?

CVE-2020-3343 is a medium-severity memory corruption vulnerability in Cisco AMP for Endpoints, published on 22 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in Cisco AMP for Endpoints Linux Connector Software and Cisco AMP for Endpoints Mac Connector Software could allow an authenticated, local attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted packet to an affected device. A successful exploit could allow the attacker to cause the Cisco AMP for Endpoints service to crash and restart.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2020-3343?

It affects 1 product.

Products include Cisco Advanced Malware Protection for Endpoints.

How do I fix CVE-2020-3343?

No fix has been published for CVE-2020-3343 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-2020-3343 being exploited?

There is no known exploitation of CVE-2020-3343 in the wild and no public exploit code.

Sources

Also known as GHSA-fmpm-2fhr-jw4j.