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[USN-1959-1] RealtimeKit vulnerability

Posted on 18 September 2013
Ubuntu Security

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Ubuntu Security Notice USN-1959-1
September 18, 2013

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

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

RealtimeKit could be tricked into bypassing polkit authorizations.

Software Description:
- rtkit: Realtime Policy and Watchdog Daemon

Details:

It was discovered that RealtimeKit was using polkit in an unsafe manner. =
A
local attacker could possibly use this issue to bypass intended polkit
authorizations.

Update instructions:

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

Ubuntu 13.04:
rtkit 0.10-2ubuntu0.13.04.1

Ubuntu 12.10:
rtkit 0.10-2ubuntu0.12.10.1

Ubuntu 12.04 LTS:
rtkit 0.10-2ubuntu0.12.04.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1959-1
CVE-2013-4326

Package Information:
https://launchpad.net/ubuntu/+source/rtkit/0.10-2ubuntu0.13.04.1
https://launchpad.net/ubuntu/+source/rtkit/0.10-2ubuntu0.12.10.1
https://launchpad.net/ubuntu/+source/rtkit/0.10-2ubuntu0.12.04.1



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