Missing Authorization Affecting virt:8.1/qemu-kvm-common package, versions <15:4.1.0-13.module+el8.1.0+4313+ef76ec61


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.12% (65th percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4424807
  • published1 Nov 2021
  • disclosed3 Apr 2019

Introduced: 3 Apr 2019

CVE-2019-3886  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:8.1/qemu-kvm-common to version 15:4.1.0-13.module+el8.1.0+4313+ef76ec61 or higher.
This issue was patched in RHBA-2019:3723.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:8.1/qemu-kvm-common package and not the virt:8.1/qemu-kvm-common package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1