CVE-2018-18408 Use after free in n/a

Critical 9.8 Published 17 Oct 2018 Updated 5 Aug 2024

A use-after-free in Tcpreplay's tcpbridge binary allows attackers to cause a denial of service or potentially other impacts.

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

What is CVE-2018-18408?

CVE-2018-18408 is a critical use after free vulnerability in Broadcom Tcpreplay, published on 17 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1. The issue gets triggered in the function post_args() at tcpbridge.c, causing a denial of service or possibly unspecified other impact.

Weakness: CWE-416

Which versions are affected by CVE-2018-18408?

It affects 2 products.

Products include Broadcom Tcpreplay, Fedoraproject Fedora.

How do I fix CVE-2018-18408?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2018-18408 being exploited?

There is no known exploitation of CVE-2018-18408 in the wild and no public exploit code.

All Broadcom Tcpreplay vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-18408, GHSA-rc6v-3qc7-jpvm, UBUNTU-CVE-2018-18408.