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Ubuntu Security Notice USN-2746-1

Ubuntu Security Notice USN-2746-1
Posted Sep 25, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2746-1 - 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.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2015-1337
SHA-256 | 48fb30d17da30955a2d3d15555d69d08f3c8dc61ae3a3794395df8798e23d3f1

Ubuntu Security Notice USN-2746-1

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Content-Disposition: inline

==========================================================================Ubuntu Security Notice USN-2746-1
September 24, 2015

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

- Ubuntu 15.04
- Ubuntu 14.04 LTS

Summary:

Applications using Simple Streams could be made to crash or run
programs if it received specially crafted network traffic.

Software Description:
- simplestreams: Library and tools for using Simple Streams data

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 versions:

Ubuntu 15.04:
python-simplestreams 0.1.0~bzr354-0ubuntu1.15.04.1
python-simplestreams-openstack 0.1.0~bzr354-0ubuntu1.15.04.1
python3-simplestreams 0.1.0~bzr354-0ubuntu1.15.04.1
simplestreams 0.1.0~bzr354-0ubuntu1.15.04.1

Ubuntu 14.04 LTS:
python-simplestreams 0.1.0~bzr341-0ubuntu2.2
python-simplestreams-openstack 0.1.0~bzr341-0ubuntu2.2
python3-simplestreams 0.1.0~bzr341-0ubuntu2.2
simplestreams 0.1.0~bzr341-0ubuntu2.2

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:
http://www.ubuntu.com/usn/usn-2746-1
CVE-2015-1337

Package Information:
https://launchpad.net/ubuntu/+source/simplestreams/0.1.0~bzr354-0ubuntu1.15.04.1
https://launchpad.net/ubuntu/+source/simplestreams/0.1.0~bzr341-0ubuntu2.2
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