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TI-2019-14616 Aliases CVE-2019-20382GHSA-gg7h-8w45-pgpg

QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c during a VNC…

Priority LOW 18CWE-401Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Partial Red Hat: 11 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.

Summary

QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c during a VNC disconnect operation because libz is misused, resulting in a situation where memory allocated in deflateInit2 is not freed in deflateEnd.

Why it matters now

EPSS 0.00866 58th percentileScored 2026-11-07
Fix Partial Red Hat: 5 advisoriesRed Hat: 11 fixed, 2 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:4.1.0:*:*:*:*:*:*:*4.1.0VulnerableQEMU
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*19.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*20.04VulnerableCanonical
  • cpe:2.3:a:qemu:qemu:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·QEMU
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical

Remediation

Red Hat 5 advisories

  • RHSA-2020:4167 Released 2020-10-05 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 13.0 qemu-img-rhev-10:2.12.0-48.el7_9.1, qemu-kvm-common-rhev-10:2.12.0-48.el7_9.1, qemu-kvm-rhev-10:2.12.0-48.el7_9.1 +1
    • Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server qemu-img-rhev-10:2.12.0-18.el7_6.12, qemu-kvm-common-rhev-10:2.12.0-18.el7_6.12, qemu-kvm-rhev-10:2.12.0-18.el7_6.12 +1
  • RHSA-2020:3906 Released 2020-09-29 · Red Hat rating Low
    qemu-kvm security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
    • Red Hat Enterprise Linux Workstation (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
  • RHSA-2020:3907 Released 2020-09-29 · Red Hat rating Low
    qemu-kvm-ma security update
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-ma-10:2.12.0-48.el7, qemu-kvm-common-ma-10:2.12.0-48.el7, qemu-kvm-ma-10:2.12.0-48.el7 +1
    • Red Hat Enterprise Linux Server Optional (v. 7) qemu-kvm-common-ma-10:2.12.0-48.el7, qemu-kvm-ma-10:2.12.0-48.el7, qemu-kvm-tools-ma-10:2.12.0-48.el7
Show 2 more Red Hat advisories
  • RHSA-2020:3267 Released 2020-08-03 · Red Hat rating Low
    qemu-kvm-rhev security, bug fix, and enhancement update
    • RHV-M 4.3 qemu-img-rhev-10:2.12.0-48.el7, qemu-kvm-common-rhev-10:2.12.0-48.el7, qemu-kvm-rhev-10:2.12.0-48.el7 +1
    • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.12.0-48.el7, qemu-kvm-common-rhev-10:2.12.0-48.el7, qemu-kvm-rhev-10:2.12.0-48.el7 +1
  • RHSA-2020:2774 Released 2020-06-30 · Red Hat rating Important
    virt:rhel security update
    • Red Hat CodeReady Linux Builder (v. 8) SLOF-20171214-6.gitfa98132.module+el8.1.0+4066+0f1aadab.src::virt-devel:rhel, hivex-1.3.15-7.module+el8.1.0+4066+0f1aadab.i686::virt-devel:rhel, hivex-devel-1.3.15-7.module+el8.1.0+4066+0f1aadab.i686::virt-devel:rhel +47
    • Red Hat Enterprise Linux AppStream (v. 8) SLOF-20171214-6.gitfa98132.module+el8.1.0+4066+0f1aadab.noarch::virt:rhel, SLOF-20171214-6.gitfa98132.module+el8.1.0+4066+0f1aadab.src::virt:rhel, hivex-1.3.15-7.module+el8.1.0+4066+0f1aadab.aarch64::virt:rhel +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 8 Advanced VirtualizationAffectedNo fix yet
Red Hat OpenStack Platform 10 (Newton)AffectedNo fix yet: Fix deferred
RHV-M 4.3Fixed RHSA-2020:3267
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:2774
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:2774
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:3906
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:3906
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:3906, RHSA-2020:3907
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:3907
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:3906
Red Hat OpenStack Platform 13.0Fixed RHSA-2020:4167
Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS ServerFixed RHSA-2020:4167
Red Hat Virtualization 4 Management Agent for RHEL 7 HostsFixed RHSA-2020:3267
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-20382
  2. 2026-10-03 Alias added: GHSA-gg7h-8w45-pgpg

References

Patch 1

Advisory 4

Other 1

Sources

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