USN-3449-1: OpenStack Nova vulnerabilities

Ubuntu Security Notice USN-3449-1

11th October, 2017

nova vulnerabilities

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

  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in OpenStack Nova.

Software description

  • 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)

Update instructions

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

Ubuntu 14.04 LTS:
python-nova

1:2014.1.5-0ubuntu1.7

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2015-3241,

CVE-2015-3280,

CVE-2015-5162,

CVE-2015-7548,

CVE-2015-7713,

CVE-2015-8749,

CVE-2016-2140

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