CVE-2021-45387 Denial of service in n/a

Medium 5.5 Published 11 Feb 2022 Updated 4 Aug 2024

A reachable assertion in tcpreplay allows attackers to cause a denial of service via crafted IPv4 packets.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2021-45387?

CVE-2021-45387 is a medium-severity denial of service vulnerability in Broadcom Tcpreplay, published on 11 Feb 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

tcpreplay 4.3.4 has a Reachable Assertion in add_tree_ipv4() at tree.c.

Weakness: CWE-617

Which versions are affected by CVE-2021-45387?

It affects 1 product.

Products include Broadcom Tcpreplay.

How do I fix CVE-2021-45387?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-45387 being exploited?

There is no known exploitation of CVE-2021-45387 in the wild and no public exploit code.

All Broadcom Tcpreplay vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-45387, GHSA-c48w-4644-5538.