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OpenAdvisories
High USN-5866-1 5 CVEs

nova vulnerabilities

Published Feb 13, 2023 · Updated Jun 25, 2026

Summary

It was discovered that Nova did not properly manage data logged into the
log file. An attacker with read access to the service's logs could exploit
this issue and may obtain sensitive information. This issue only affected
Ubuntu 16.04 ESM and Ubuntu 18.04 LTS. (CVE-2015-9543)

It was discovered that Nova did not properly handle attaching and
reattaching the encrypted volume. An attacker could possibly use this issue
to perform a denial of service attack. This issue only affected Ubuntu
16.04 ESM. (CVE-2017-18191)

It was discovered that Nova did not properly handle the updation of domain
XML after live migration. An attacker could possibly use this issue to
corrupt the volume or perform a denial of service attack. This issue only
affected Ubuntu 18.04 LTS. (CVE-2020-17376)

It was discovered that Nova was not properly validating the URL passed to
noVNC. An attacker could possibly use this issue by providing malicious URL
to the noVNC proxy to redirect to any desired URL. This issue only affected
Ubuntu 16.04 ESM and Ubuntu 18.04 LTS. (CVE-2021-3654)

It was discovered that Nova did not properly handle changes in the neutron
port of vnic_type type. An authenticated user could possibly use this issue
to perform a denial of service attack. This issue only affected Ubuntu
20.04 LTS. (CVE-2022-37394)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS nova 2:17.0.13-0ubuntu5.3
Ubuntu · 20.04 LTS 20.04:LTS nova 2:21.2.4-0ubuntu2.2
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS nova 2:13.1.4-0ubuntu4.5+esm1

Vulnerabilities 5

  • High 8.3

    OpenStack Nova Live migration fails to update persistent domain XML

    An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination h…

  • High 7.5

    OpenStack Nova Denial of service attack on the compute host

    An issue was discovered in OpenStack Nova 15.x through 15.1.0 and 16.x through 16.1.1. By detaching and reattaching an encrypted volume, an attacker may access the underlying raw volume and corrupt the LUKS header, resulting in a denial of service attack on t…

  • Medium 6.1
    CVE-2021-3654 Scanner template EPSS 27%

    Open Redirect in CPython that affects users of OpenStack Nova

    A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.

  • Low 3.3

    OpenStack Nova can leak consoleauth token into log files

    An issue was discovered in OpenStack Nova before 18.2.4, 19.x before 19.1.0, and 20.x before 20.1.0. It can leak consoleauth tokens into log files. An attacker with read access to the service's logs may obtain tokens used for console access. All Nova setups u…

  • Low 3.3

    OpenStack Nova Changing vnic_type breaks compute service restart

    An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and then changing the vnic_type of the bound port to macvtap, a…

References

  • report
    https://ubuntu.com/security/CVE-2015-9543
  • report
    https://ubuntu.com/security/CVE-2017-18191
  • report
    https://ubuntu.com/security/CVE-2020-17376
  • report
    https://ubuntu.com/security/CVE-2021-3654
  • report
    https://ubuntu.com/security/CVE-2022-37394