CVE-2018-19623: Debian Linux

High severity, CVSS 7.5. EPSS: 4.2% chance of exploitation in the next 30 days.

In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Wireshark Wireshark: from 2.4.0, up to and including 2.4.10; from 2.6.0, up to and including 2.6.4

Published 2018-11-29. Last modified 2026-06-17.