CVE-2022-27191: Fedoraproject Extra Packages For Enterprise Linux

High severity, CVSS 7.5. EPSS: 3.9% chance of exploitation in the next 30 days.

The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to crash a server in certain circumstances involving AddHostKey.

Affected products

• Fedoraproject Extra Packages For Enterprise Linux: version 8.0 only
• Fedoraproject Fedora: version 34 only; version 35 only; version 36 only
• Golang SSH: before 0.0.0-20220314234659-1baeb1ce4c0b (fixed in 0.0.0-20220314234659-1baeb1ce4c0b)
• Red Hat Advanced Cluster Management For Kubernetes: version 2.0 only

Published 2022-03-18. Last modified 2026-06-17.