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USN-2988-1: LXD vulnerabilities

31 May 2016

Several security issues were fixed in LXD.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

  • lxd - Container hypervisor based on LXC

Details

Robie Basak discovered that LXD incorrectly set permissions when setting up
a loop based ZFS pool. A local attacker could use this issue to copy and
read the data of any LXD container. (CVE-2016-1581)

Robie Basak discovered that LXD incorrectly set permissions when switching
an unprivileged container into privileged mode. A local attacker could use
this issue to access any world readable path in the container directory,
including setuid binaries. (CVE-2016-1582)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 16.04
Ubuntu 15.10

In general, a standard system update will make all the necessary changes.