CVE-2023-27788 Denial of service in n/a

High 7.5 Published 16 Mar 2023 Updated 26 Feb 2025

A remote attacker can cause a denial of service in TCPrewrite via the ports2PORT function, affecting systems running this portmap utility.

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

What is CVE-2023-27788?

CVE-2023-27788 is a high-severity denial of service vulnerability in Broadcom Tcpreplay, published on 16 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue found in TCPrewrite v.4.4.3 allows a remote attacker to cause a denial of service via the ports2PORT function at the portmap.c:69 endpoint.

Weakness: CWE-617

Which versions are affected by CVE-2023-27788?

It affects 1 product.

Products include Broadcom Tcpreplay.

How do I fix CVE-2023-27788?

Apply the vendor's patch.

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-2023-27788 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-27788 exists.

All Broadcom Tcpreplay vulnerabilities

Sources

Also known as DEBIAN-CVE-2023-27788, GHSA-qjr7-px55-gpcc, UBUNTU-CVE-2023-27788.