USN-2746-2: Simple Streams regression

Releases

• Ubuntu 15.04
• Ubuntu 14.04 ESM

Packages

• simplestreams - Library and tools for using Simple Streams data

Details

USN-2746-1 fixed a vulnerability in Simple Streams. The update caused a
regression preventing MAAS from downloading PXE images. This update fixes
the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that Simple Streams did not properly perform gpg
verification in some situations. A remote attacker could use this to
perform a machine-in-the-middle attack and inject malicious content into
the stream.

Update instructions

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

Ubuntu 15.04

• python-simplestreams - 0.1.0~bzr354-0ubuntu1.15.04.2
• python-simplestreams-openstack - 0.1.0~bzr354-0ubuntu1.15.04.2
• python3-simplestreams - 0.1.0~bzr354-0ubuntu1.15.04.2
• simplestreams - 0.1.0~bzr354-0ubuntu1.15.04.2

Ubuntu 14.04

• python-simplestreams - 0.1.0~bzr341-0ubuntu2.3
• python-simplestreams-openstack - 0.1.0~bzr341-0ubuntu2.3
• python3-simplestreams - 0.1.0~bzr341-0ubuntu2.3
• simplestreams - 0.1.0~bzr341-0ubuntu2.3

After a standard system update you need to restart any services that
make use of python-simplestreams or python3-simplestreams to make
all the necessary changes.

References

• https://launchpad.net/bugs/1499749