CVE-2019-3863

A flaw was found in libssh2. A server could send a multiple keyboard interactive response messages, whose total length are greater than the unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error. The highest threat from this vulnerability is to data confidentiality and integrity and system availability.

This affects only the SSH Client.

This flaw was present in libssh2 packages included in Red Hat Virtualization Hypervisor and Management Appliance, however libssh2 in these hosts is never exposed to malicious clients or servers.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.