CVEvulnerability

CVE-2020-14339

8.8 HIGH Published 2020-12-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-12-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-772

Description

A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected configurations

• redhat libvirt (>= 6.2.0 < 6.7.0) • redhat enterprise linux 8.0

Related

Weakness · CWE (1)

  • CWE-772 Missing Release of Resource after Effective Lifetime weakness

References