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VULNERABILITIES

CVE-2020-14339 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1860069 CVEIssue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202101-22 CVEThird Party Advisory
https://security.gentoo.org/glsa/202210-06 CVEThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1860069 [email protected]Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202101-22 [email protected]Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-772Missing Release of Resource after Effective Lifetime[email protected]
CWE-772Missing Release of Resource after Effective Lifetime[email protected]

Affected Products

ProductVersions
redhat libvirt
>= 6.2.0, < 6.7.0

CPE

  • cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat enterprise linux
8.0

CPE

  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-14339
NVD Published Date:
Dec 3, 2020
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]