CVE-2020-14339

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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 7.2 HIGH

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1860069	Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/202101-22	Third Party Advisory
https://security.gentoo.org/glsa/202210-06	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:8.0::::advanced_virtualization:::
	cpe:2.3:a:redhat:libvirt::::::::

Information

Published : 2020-12-03 09:15

Updated : 2022-11-07 10:56

NVD link : CVE-2020-14339

Mitre link : CVE-2020-14339

JSON object : View

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

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Products Affected

redhat

enterprise_linux
libvirt

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