CVE-2023-27784 Null dereference in n/a

High 7.5 Published 16 Mar 2023 Updated 26 Feb 2025

A remote attacker can cause a denial of service in TCPReplay via a null pointer dereference in the read_hexstring function.

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

What is CVE-2023-27784?

CVE-2023-27784 is a high-severity 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 TCPReplay v.4.4.3 allows a remote attacker to cause a denial of service via the read_hexstring function at the utils.c:309 endpoint.

Weakness: CWE-476

Which versions are affected by CVE-2023-27784?

It affects 1 product.

Products include Broadcom Tcpreplay.

How do I fix CVE-2023-27784?

Upgrade to a fixed version.

Is CVE-2023-27784 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-27784 exists.

All Broadcom Tcpreplay vulnerabilities

Sources

Also known as DEBIAN-CVE-2023-27784, GHSA-62v5-6pm8-jxc2, UBUNTU-CVE-2023-27784.