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TI-2020-17679 Aliases CVE-2020-29443GHSA-3q92-j8r6-g6h8

ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access…

Priority LOW 19CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · None · Low
Fix status
Partial Red Hat: 10 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer index is not validated.

Why it matters now

EPSS 0.00377 31st percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 10 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 · 3

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:5.1.0:-:*:*:*:*:*:*5.1.0VulnerableQEMU
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:a:qemu:qemu:5.1.0:-:*:*:*:*:*:* Versions 5.1.0 Vulnerable ·QEMU
  • 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

Remediation

Red Hat 3 advisories

  • RHSA-2021:2529 Released 2021-06-23 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • RHV-M 4.3 qemu-img-rhev-10:2.12.0-48.el7_9.3, qemu-kvm-common-rhev-10:2.12.0-48.el7_9.3, qemu-kvm-rhev-10:2.12.0-48.el7_9.3 +1
    • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.12.0-48.el7_9.3, qemu-kvm-common-rhev-10:2.12.0-48.el7_9.3, qemu-kvm-rhev-10:2.12.0-48.el7_9.3 +1
  • RHSA-2021:2322 Released 2021-06-08 · Red Hat rating Moderate
    qemu-kvm security update
    • Red Hat Enterprise Linux Client (v. 7) qemu-img-10:1.5.3-175.el7_9.4, qemu-kvm-10:1.5.3-175.el7_9.4, qemu-kvm-common-10:1.5.3-175.el7_9.4 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img-10:1.5.3-175.el7_9.4, qemu-kvm-10:1.5.3-175.el7_9.4, qemu-kvm-common-10:1.5.3-175.el7_9.4 +1
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-10:1.5.3-175.el7_9.4, qemu-kvm-10:1.5.3-175.el7_9.4, qemu-kvm-common-10:1.5.3-175.el7_9.4 +1
    • Red Hat Enterprise Linux Workstation (v. 7) qemu-img-10:1.5.3-175.el7_9.4, qemu-kvm-10:1.5.3-175.el7_9.4, qemu-kvm-common-10:1.5.3-175.el7_9.4 +1
  • RHSA-2021:1762 Released 2021-05-18 · 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

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8 Advanced VirtualizationAffectedNo fix planned: Will not fix
Advanced Virtualization CodeReady Builder for RHEL 8.3.1Fixed—
Advanced Virtualization for RHEL 8.3.1Fixed—
RHV-M 4.3Fixed RHSA-2021:2529
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:1762
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:1762
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2021:2322
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2021:2322
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:2322
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:2322
Red Hat Virtualization 4 Management Agent for RHEL 7 HostsFixed RHSA-2021:2529
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-29443
  2. 2026-10-03 Alias added: GHSA-3q92-j8r6-g6h8

References

Patch 2

Advisory 3

Sources

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