Moderate: libssh2 security update (Amazon Linux 2)

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2019-3861: An out of bounds read flaw was discovered in libssh2 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory. 1687311: CVE-2019-3861 libssh2: Out-of-bounds reads with specially crafted SSH packets CVE-2019-3858: An out of bounds read flaw was discovered in libssh2 when a specially crafted SFTP packet is received from the server. A remote attacker who compromises a SSH server may be able to cause a denial of service or read data in the client memory. 1687306: CVE-2019-3858 libssh2: Zero-byte allocation with a specially crafted SFTP packed leading to an out-of-bounds read