Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Libvirt | >= 6.2.0, < 6.7.0 |
| Redhat | Enterprise Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1860069Issue TrackingPatchThird Party Advisory
- https://security.gentoo.org/glsa/202101-22Third Party Advisory
- https://security.gentoo.org/glsa/202210-06Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1860069Issue TrackingPatchThird Party Advisory
- https://security.gentoo.org/glsa/202101-22Third Party Advisory
- https://security.gentoo.org/glsa/202210-06Third Party Advisory
FAQ
What is CVE-2020-14339?
CVE-2020-14339 is a vulnerability with a CVSS score of 8.8 (HIGH). 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-mappe...
How severe is CVE-2020-14339?
CVE-2020-14339 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-14339?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Libvirt, Redhat Enterprise Linux.