USN-2746-2: Simple Streams regression

Ubuntu Security Notice USN-2746-2

25th September, 2015

simplestreams regression

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

• Ubuntu 15.04
• Ubuntu 14.04 LTS

Summary

USN-2746-1 introduced a regression in Simple Streams.

Software description

• 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 man-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 version:

Ubuntu 15.04:

python-simplestreams 0.1.0~bzr354-0ubuntu1.15.04.2

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

Ubuntu 14.04 LTS:

python-simplestreams 0.1.0~bzr341-0ubuntu2.3

simplestreams 0.1.0~bzr341-0ubuntu2.3

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

python3-simplestreams 0.1.0~bzr341-0ubuntu2.3

To update your system, please follow these instructions: http://ift.tt/17VXqjU.

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

LP: 1499749

from Ubuntu Security Notices http://ift.tt/1NZ1SUy