CVE-2018-5378: Canonical Ubuntu Linux

Medium severity, CVSS 5.9. EPSS: 74.2% chance of exploitation in the next 30 days.

The Quagga BGP daemon (bgpd) prior to version 1.2.3 does not properly bounds check the data sent with a NOTIFY to a peer, if an attribute length is invalid. Arbitrary data from the bgpd process may be sent over the network to a peer and/or bgpd may crash.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Quagga Quagga: up to and including 1.2.2

Published 2018-02-19. Last modified 2026-06-17.