CVE-2018-19626 Null dereference in n/a

Medium 5.5 Published 29 Nov 2018 Updated 5 Aug 2024

A missing null termination in the DCOM dissector allows attackers to crash Wireshark via crafted packets, requiring a software update.

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-2018-19626?

CVE-2018-19626 is a medium-severity vulnerability in Debian Debian Linux, published on 29 Nov 2018. 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

In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the DCOM dissector could crash. This was addressed in epan/dissectors/packet-dcom.c by adding '\0' termination.

Weakness: CWE-908, CWE-125

Which versions are affected by CVE-2018-19626?

It affects 2 products.

Products include Debian Debian Linux, Wireshark Wireshark.

How do I fix CVE-2018-19626?

Apply the vendor's patch.

Is CVE-2018-19626 being exploited?

There is no known exploitation of CVE-2018-19626 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-19626, GHSA-jq69-42qh-q6qj, UBUNTU-CVE-2018-19626.