Moderate: samba security update (Amazon Linux 2)

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-1139: A flaw was found in the way samba allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client. 1589651: CVE-2018-1139 samba: Weak authentication protocol regression CVE-2018-10858: A heap-buffer overflow was found in the way samba clients processed extra long filename in a directory listing. A malicious samba server could use this flaw to cause arbitrary code execution on a samba client. 1612805: CVE-2018-10858 samba: Insufficient input validation in libsmbclient CVE-2018-1050: A null pointer dereference flaw was found in Samba RPC external printer service. An attacker could use this flaw to cause the printer spooler service to crash. 1538771: CVE-2018-1050 samba: NULL pointer dereference in printer server process