Cisco IOS SSH Multiple Denial of Service Vulnerabilities

Cisco IOS SSH Multiple Denial of Service Vulnerabilities

Cisco IOS is prone to multiple remote denial-of-service vulnerabilities affecting the SSH (Secure Shell) implementation.

Successfully exploiting these issues allows remote attackers to generate spurious memory-access errors or cause the targeted device to reload. Repeated attacks will lead to denial-of-service conditions.

These issues are tracked by Cisco Bug IDs CSCsk42419, CSCsk60020, and CSCsh51293.

These issues affect devices running 12.4-based IOS releases that have SSH configured. Note that SSH is not configured by default.