CVE-2018-14461 Memory corruption in n/a

High 7.5 Published 3 Oct 2019 Updated 3 Dec 2025

A buffer over-read in tcpdump's LDP parser allows attackers to cause denial of service or disclose sensitive memory contents via crafted packets.

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

What is CVE-2018-14461?

CVE-2018-14461 is a high-severity memory corruption vulnerability in Apple Mac Os X, published on 3 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The LDP parser in tcpdump before 4.9.3 has a buffer over-read in print-ldp.c:ldp_tlv_print().

Weakness: CWE-125

Which versions are affected by CVE-2018-14461?

It affects 6 products.

Products include Apple Mac Os X, Debian Debian Linux, Fedoraproject Fedora, Opensuse Leap, Redhat Enterprise Linux, Tcpdump Tcpdump.

How do I fix CVE-2018-14461?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-14461 being exploited?

There is no known exploitation of CVE-2018-14461 in the wild and no public exploit code.

All Apple Mac Os X vulnerabilities

Sources

Also known as ALPINE-CVE-2018-14461, DEBIAN-CVE-2018-14461, GHSA-6hrq-9c58-j26c, UBUNTU-CVE-2018-14461.