Ubuntu Security Notice 1802-1 - It was discovered that Samba incorrectly handled CIFS share attributes when SMB2 was used. A remote authenticated user could possibly gain write access to certain shares, bypassing the intended permissions.
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Ubuntu Security Notice USN-1802-1
April 16, 2013
samba vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
Samba would allow unintended write access to files over the network.
Software Description:
- samba: SMB/CIFS file, print, and login server for Unix
Details:
It was discovered that Samba incorrectly handled CIFS share attributes when
SMB2 was used. A remote authenticated user could possibly gain write access
to certain shares, bypassing the intended permissions.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
samba 2:3.6.3-2ubuntu2.6
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1802-1
CVE-2013-0454
Package Information:
https://launchpad.net/ubuntu/+source/samba/2:3.6.3-2ubuntu2.6