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USN-3449-1: OpenStack Nova vulnerabilities

11 October 2017

Several security issues were fixed in OpenStack Nova.

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Releases

Packages

  • nova - OpenStack Compute cloud infrastructure

Details

George Shuklin discovered that OpenStack Nova incorrectly handled the
migration process. A remote authenticated user could use this issue to
consume resources, resulting in a denial of service. (CVE-2015-3241)

George Shuklin and Tushar Patil discovered that OpenStack Nova incorrectly
handled deleting instances. A remote authenticated user could use this
issue to consume disk resources, resulting in a denial of service.
(CVE-2015-3280)

It was discovered that OpenStack Nova incorrectly limited qemu-img calls. A
remote authenticated user could use this issue to consume resources,
resulting in a denial of service. (CVE-2015-5162)

Matthew Booth discovered that OpenStack Nova incorrectly handled snapshots.
A remote authenticated user could use this issue to read arbitrary files.
(CVE-2015-7548)

Sreekumar S. and Suntao discovered that OpenStack Nova incorrectly applied
security group changes. A remote attacker could possibly use this issue to
bypass intended restriction changes by leveraging an instance that was
running when the change was made. (CVE-2015-7713)

Matt Riedemann discovered that OpenStack Nova incorrectly handled logging.
A local attacker could possibly use this issue to obtain sensitive
information from log files. (CVE-2015-8749)

Matthew Booth discovered that OpenStack Nova incorrectly handled certain
qcow2 headers. A remote authenticated user could possibly use this issue to
read arbitrary files. (CVE-2016-2140)

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 14.04

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