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TI-2020-11210 Aliases CVE-2020-14339GHSA-c772-g5j9-w9w8

A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control`…

Priority LOW 38CWE-772Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-772.

Summary

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.

Why it matters now

EPSS 0.00421 36th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—libvirtlibvirt 6.6.0—No fix listedCNA
  • libvirt Vendor— Affected libvirt 6.6.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*6.2.0 to before 6.7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*8.0VulnerableRed Hat
  • cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:* Versions 6.2.0 to before 6.7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:* Versions 8.0 Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2020:4676 Released 2020-11-04 · Red Hat rating Moderate
    virt:rhel and virt-devel:rhel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.src::virt-devel:rhel, hivex-1.3.18-20.module+el8.3.0+6423+e4cb6418.i686::virt-devel:rhel, hivex-devel-1.3.18-20.module+el8.3.0+6423+e4cb6418.i686::virt-devel:rhel +47
    • Red Hat Enterprise Linux AppStream (v. 8) SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.noarch::virt:rhel, SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.src::virt:rhel, hivex-1.3.18-20.module+el8.3.0+6423+e4cb6418.aarch64::virt:rhel +47
  • RHSA-2020:3586 Released 2020-09-01 · Red Hat rating Important
    virt:8.2 and virt-devel:8.2 security and bug fix update
    • Advanced Virtualization CodeReady Builder for RHEL 8.2.1 SLOF-20191022-3.git899d9883.module+el8.2.0+5449+efc036dd.src::virt-devel:8.2, hivex-1.3.18-20.module+el8.2.0+5588+63a201c3.i686::virt-devel:8.2, hivex-devel-1.3.18-20.module+el8.2.0+5588+63a201c3.i686::virt-devel:8.2 +47
    • Advanced Virtualization for RHEL 8.2.1 SLOF-20191022-3.git899d9883.module+el8.2.0+5449+efc036dd.noarch::virt:8.2, SLOF-20191022-3.git899d9883.module+el8.2.0+5449+efc036dd.src::virt:8.2, hivex-1.3.18-20.module+el8.2.0+5588+63a201c3.aarch64::virt:8.2 +47

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 8 Advanced VirtualizationAffectedNo fix yet
Advanced Virtualization CodeReady Builder for RHEL 8.2.1Fixed RHSA-2020:3586
Advanced Virtualization for RHEL 8.2.1Fixed RHSA-2020:3586
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:4676
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:4676
Not affected: 5 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8 Advanced Virtualization
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-14339
  2. 2026-10-03 Alias added: GHSA-c772-g5j9-w9w8

References

Patch 1

Advisory 2

  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
See all 1955 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences