CVE-2020-14301

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-27 · updated 2026-06-17
Weakness: CWE-212

Description

An information disclosure vulnerability was found in libvirt in versions before 6.3.0. HTTP cookies used to access network-based disks were saved in the XML dump of the guest domain. This flaw allows an attacker to access potentially sensitive information in the domain configuration via the `dumpxml` command.

Affected products

NetApp ONTAP Select Deploy administration utility: all versions
RedHat Codeready Linux Builder: all versions
Red Hat Enterprise Linux: 8.0
RedHat Enterprise Linux Eus: 8.4
RedHat Enterprise Linux For Ibm Z Systems: 8.0
RedHat Enterprise Linux For Ibm Z Systems Eus: 8.4
RedHat Enterprise Linux For Power Little Endian: 8.0
RedHat Enterprise Linux For Power Little Endian Eus: 8.4
RedHat Enterprise Linux Server Aus: 8.4
RedHat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions: 8.4
RedHat Enterprise Linux Server Update Services For Sap Solutions: 8.4
RedHat Enterprise Linux Tus: 8.4
libvirt: from 6.2.0 before 6.3.0 — fixed in 6.3.0

How to fix

Upgrade to a fixed version: libvirt 6.3.0. Check the vendor advisory for mitigations.

References

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