Ubuntu has issued an update for update-manager. This fixes two security issues, which can potentially be exploited by malicious, local users and malicious people to disclose sensitive information.

1) An error when creating system state archive files with incorrect permissions can be exploited to read repository credentials.

2) An error when uploading certain system state archive files can be exploited to read repository credentials.

Solution
Apply updated packages.
Further details available to Secunia VIM customers

Provided and/or discovered by
1) Reported by the vendor.
2) The vendor credits Felix Geyer.

Changelog
Further details available to Secunia VIM customers

Original Advisory
USN-1443-1:
http://www.ubuntu.com/usn/usn-1443-1
http://www.ubuntu.com/usn/usn-1443-2

Deep Links
Links available to Secunia VIM customers