Samba 4.6.8发布，安全修复版本

• CVE-2017-12150 (SMB1/2/3 connections may not require signing where they should)

• CVE-2017-12151 (SMB3 connections don't keep encryption across DFS redirects)

• CVE-2017-12163 (Server memory information leak over SMB1)

详情

• CVE-2017-12150: A man in the middle attack may hijack client connections.

• CVE-2017-12151: A man in the middle attack can read and may alter confidential documents transferred via a client connection, which are reached via DFS redirect when the original connection used SMB3.

• CVE-2017-12163: Client with write access to a share can cause server memory contents to be written into a file or printer.

有关详细信息和解决方法，请参阅安全性建议：

https://www.samba.org/samba/security/CVE-2017-12150.html

https://www.samba.org/samba/security/CVE-2017-12151.html

https://www.samba.org/samba/security/CVE-2017-12163.html

Changes since 4.6.7:Jeremy Allison <jra@samba.org>

• BUG 12836: s3: smbd: Fix a read after free if a chained SMB1 call goes async.

• BUG 13020: CVE-2017-12163: s3:smbd: Prevent client short SMB1 write from writing server memory to file.

Ralph Boehme <slow@samba.org>

• BUG 12885: s3/smbd: Let non_widelink_open() chdir() to directories directly.

Stefan Metzmacher <metze@samba.org>

• BUG 12996: CVE-2017-12151: Keep required encryption across SMB3 dfs redirects.

• BUG 12997: CVE-2017-12150: Some code path don't enforce smb signing when they should.