CVE-2018-11356: Debian Linux

High severity, CVSS 7.5. EPSS: 2.8% chance of exploitation in the next 30 days.

In Wireshark 2.6.0, 2.4.0 to 2.4.6, and 2.2.0 to 2.2.14, the DNS dissector could crash. This was addressed in epan/dissectors/packet-dns.c by avoiding a NULL pointer dereference for an empty name in an SRV record.

Affected products

• Debian Debian Linux: version 8.0 only
• Wireshark Wireshark: from 2.2.0, up to and including 2.2.14; from 2.4.0, up to and including 2.4.6; version 2.6.0 only

Published 2018-05-22. Last modified 2026-06-17.