USN-702-1: Samba vulnerability

Ubuntu Security Notice USN-702-1

5th January, 2009

samba vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 8.10

Software description

  • samba


Gunter Höckel discovered that Samba with registry shares enabled did not
properly validate share names. An authenticated user could gain access to the
root filesystem by using an older version of smbclient and specifying an
empty string as a share name. This is only an issue if registry shares are
enabled on the server by setting "registry shares = yes", "include = registry",
or "config backend = registry", which is not the default.

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 8.10:
samba 2:3.2.3-1ubuntu3.4

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the
necessary changes.