CVE-2019-6778: Canonical Ubuntu Linux

High severity, CVSS 7.8. EPSS: 0.6% chance of exploitation in the next 30 days.

In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Fedoraproject Fedora: version 29 only; version 30 only
• Opensuse Leap: version 15.0 only; version 42.3 only
• Qemu Qemu: version 3.0.0 only

Published 2019-03-21. Last modified 2026-06-17.