CVE-2020-8597: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 19.9% chance of exploitation in the next 30 days.

eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 18.04 only; version 19.04 only
• Debian Debian Linux: version 9.0 only; version 10.0 only
• Point-To-Point Protocol Project Point-To-Point Protocol: from 2.4.2, up to and including 2.4.8
• Wago Pfc Firmware: before 03.04.10\(16\) (fixed in 03.04.10\(16\))

Published 2020-02-03. Last modified 2026-06-17.