A flaw was found in libssh

Overview

A flaw was found in libssh. Logic errors in automatic certificate-based public key authentication can cause libssh clients to loop indefinitely when configured certificates are missing or repeatedly rejected by a server, leading to denial of service.

Affected

• libssh >= 0.11.0, < 0.11.5
• libssh = 0.12.0
• hardened_images
• enterprise_linux = 10.0
• enterprise_linux = 10.2
• enterprise_linux_for_els = 10.2
• enterprise_linux_for_eus = 10.2
• enterprise_linux_for_ibm_z_systems = 10.0
• enterprise_linux_for_ibm_z_systems = 10.2
• enterprise_linux_for_ibm_z_systems_els = 10.2
• enterprise_linux_for_ibm_z_systems_eus = 10.2
• enterprise_linux_for_power_little_endian = 10.0
• enterprise_linux_for_power_little_endian = 10.2
• enterprise_linux_for_power_little_endian_els = 10.2
• enterprise_linux_for_power_little_endian_eus = 10.2

Remediation

Upgrade past the affected range:

• libssh 0.11.5