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Ubuntu 14.04 LTS & 14.10: 2452-1 Moderate: cgmanager Security Vulnerability

ubuntu
Calendar Grey January 6, 2015
Dist Ubuntu Esm H88
The Debian Security Advisory DSA-2451-1 describes a vulnerability in libclient, leading to potential exposure of confidential information within isolation systems.
cgmanager could be made to expose sensitive information or devices tocontainers running on the system.

Summary

cgmanager could be made to expose sensitive information or devices to

containers running on the system.

Software Description:

- cgmanager: Central cgroup manager daemon

Details:

Serge Hallyn discovered that cgmanager did not consistently enforce

proper nesting when modifying cgroup properties. A local attacker in a

privileged container could use this to set cgroup values for all cgroups.

Topics%20covered

Topics Covered

security advisory moderate severity ubuntu cgmanager sensitive exposure

Update Instructions

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

Ubuntu 14.10:
  cgmanager                       0.32-4ubuntu1.1

Ubuntu 14.04 LTS:
  cgmanager                       0.24-0ubuntu7.1

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

References

https://ubuntu.com/security/notices/USN-2451-1

CVE-2014-1425

January 06, 2015

Topics%20covered

Topics Covered

security advisory moderate severity ubuntu cgmanager sensitive exposure

Package Information

https://launchpad.net/ubuntu/+source/cgmanager/0.32-4ubuntu1.1
https://launchpad.net/ubuntu/+source/cgmanager/0.24-0ubuntu7.1

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