A flaw was found in the samba client, all samba versions before samba 4.11.2, 4.10.10 and 4.9.15, where a malicious server can supply a pathname to the client with separators. This could allow the client to access files and folders outside of the SMB network pathnames. An attacker could use this vulnerability to create files outside of the current working directory using the privileges of the client user.

A flaw was found in the samba client, all samba versions before samba 4.11.2, 4.10.10 and 4.9.15, where a malicious server can supply a pathname to the client with separators. This could allow the client to access files and folders outside of the SMB network pathnames. An attacker could use this vulnerability to create files outside of the current working directory using the privileges of the client user.

samba: smb client vulnerable to filenames containing path separators samba: Crash after failed character conversion at log level 3 or above

samba: Combination of parameters and permissions can allow user to escape from the share path definition samba: smb client vulnerable to filenames containing path separators

Security update for samba

Affected: Ubuntu:Pro:14.04:LTS: samba, Ubuntu:16.04:LTS: samba, Ubuntu:18.04:LTS: samba

A flaw was found in the samba client, all samba versions before samba 4.11.2, 4.10.10 and 4.9.15, where a malicious server can supply a pathname to the client with separators. This could allow the client to access files and folders outside of the SMB network pathnames. An attacker could use this vulnerability to create files outside of the current working directory using the privileges of the client user.

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Samba ausnutzen, um Dateien zu manipulieren, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service zu verursachen.