Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.

Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.

ctdb-4.5.0-1.1 on GA media

samba: Insufficient symlink verification in smbd samba: client requesting encryption vulnerable to downgrade attack Samba: Missing access control check in shadow copy code libldb: remote memory read in the Samba LDAP server samba: DoS to AD-DC due to insufficient checking of asn1 memory allocation

Security update for ldb, samba, talloc, tdb, tevent

Affected: Ubuntu:14.04:LTS: samba, Ubuntu:16.04:LTS: samba

Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Samba ausnutzen, um Informationen offenzulegen oder einen Denial of Service zu verursachen.