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Ubuntu 13.04 USN-1959-1 Moderate: RealtimeKit Polkit Bypass

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Calendar Grey September 18, 2013
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Versions 13.04, 12.10, and 12.04 LTS of Ubuntu vulnerable due to RealtimeKit exploit. Ensure you update your system for security enhancements.
RealtimeKit could be tricked into bypassing polkit authorizations.

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.

Topics%20covered

Topics Covered

security advisory moderate ubuntu rtkit polkit bypass

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

https://ubuntu.com/security/notices/USN-1959-1

CVE-2013-4326

Severity
important
Lowest
Low
Medium
High
Critical

September 18, 2013

Topics%20covered

Topics Covered

security advisory moderate ubuntu rtkit polkit bypass

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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