CVE-2018-11358: 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 Q.931 dissector could crash. This was addressed in epan/dissectors/packet-q931.c by avoiding a use-after-free after a malformed packet prevented certain cleanup.

Affected products

• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 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.