CVE-2019-3886 Missing authorization in libvirt

What is CVE-2019-3886?

CVE-2019-3886 is a medium-severity missing authorization vulnerability in Fedoraproject Fedora, published on 4 Apr 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An incorrect permissions check was discovered in libvirt 4.8.0 and above. The readonly permission was allowed to invoke APIs depending on the guest agent, which could lead to potentially disclosing unintended information or denial of service by causing libvirt to block.

Weakness: CWE-862

Which versions are affected by CVE-2019-3886?

It affects 3 products.

Products include Fedoraproject Fedora, Opensuse Leap, Redhat Libvirt.

How do I fix CVE-2019-3886?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-3886 being exploited?

There is no known exploitation of CVE-2019-3886 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-3886, GHSA-wxvx-hq9w-75x9, SUSE-SU-2019:1285-1.