high
7.8
CWE
284
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-10166

First published: Thu Jun 13 2019(Updated: )

It was discovered that libvirtd would permit readonly clients to use the virDomainManagedSaveDefineXML() API, which would permit them to modify managed save state files. If a managed save had already been created by a privileged user, a local attacker could modify this file such that libvirtd would execute an arbitrary program when the domain was resumed. This vulnerability was first present in libvirt v3.6.1.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/libvirt<0:4.5.0-10.el7_6.12
0:4.5.0-10.el7_6.12
redhat/redhat-release-virtualization-host<0:4.3.4-1.el7e
0:4.3.4-1.el7e
redhat/redhat-virtualization-host<0:4.3.4-20190620.3.el7_6
0:4.3.4-20190620.3.el7_6
Redhat Libvirt>=4.0.0<4.10.1
Redhat Libvirt>=5.0.0<5.4.1
Redhat Enterprise Linux=7.0
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Desktop=6.0
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Server=6.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Eus=7.6
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Workstation=6.0
Redhat Enterprise Linux Workstation=7.0
Redhat Virtualization=4.3
redhat/libvirt<4.10.1
4.10.1
redhat/libvirt<5.4.1
5.4.1
debian/libvirt
7.0.0-3+deb11u3
9.0.0-4+deb12u1
10.7.0-3

Remedy

The Unix permissions of libvirt's read-only socket can be made more restrictive than the default (0777) by editing `/etc/libvirt/libvirtd.conf`. The settings `unix_sock_group = libvirt` and `unix_sock_ro_perms = 0770` will restrict access to only members of `libvirt`, who already have management access to virtual machines.

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2019-10166.

  • What is the severity of CVE-2019-10166?

    CVE-2019-10166 has a high severity rating.

  • What is the affected software?

    The affected software is libvirtd versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1.

  • How can the vulnerability be fixed?

    To fix the vulnerability, update libvirtd to version 4.10.1 or newer.

  • Where can I find more information about CVE-2019-10166?

    You can find more information about CVE-2019-10166 at the following references: [1] [2] [3].

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203