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Red Hat Enterprise Linux 9: RHSA-2022-7967-01 Moderate: Qemu-KVM Security

red hat
Calendar Grey November 15, 2022
Dist Redhat Esm H88
The recent Patch for qemu-kvm from Red Hat tackles significant security vulnerabilities, such as a DMA reentrancy flaw and a critical heap buffer overflow.
An update for qemu-kvm is now available for Red Hat Enterprise Linux 9

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.

Summary

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.
The following packages have been upgraded to a later upstream version: qemu-kvm (7.0.0). (BZ#2064757)
Security Fix(es):
* QEMU: hcd-ehci: DMA reentrancy issue leads to use-after-free (CVE-2021-3750)
* QEMU: fdc: heap buffer overflow in DMA read data transfers(CVE-2021-3507)
* QEMU: intel-hda: segmentation fault due to stack overflow (CVE-2021-3611)
* QEMU: NULL pointer dereference in pci_write() in hw/acpi/pcihp.c (CVE-2021-4158)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux heap overflow virtualization qemu-kvm DMA issue

References

https://access.redhat.com/security/cve/CVE-2021-3507 https://access.redhat.com/security/cve/CVE-2021-3611 https://access.redhat.com/security/cve/CVE-2021-3750 https://access.redhat.com/security/cve/CVE-2021-4158 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.1_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 9):
Source: qemu-kvm-7.0.0-13.el9.src.rpm
aarch64: qemu-guest-agent-7.0.0-13.el9.aarch64.rpm qemu-guest-agent-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-img-7.0.0-13.el9.aarch64.rpm qemu-img-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-7.0.0-13.el9.aarch64.rpm qemu-kvm-audio-pa-7.0.0-13.el9.aarch64.rpm qemu-kvm-audio-pa-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-block-curl-7.0.0-13.el9.aarch64.rpm qemu-kvm-block-curl-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-block-rbd-7.0.0-13.el9.aarch64.rpm qemu-kvm-block-rbd-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-common-7.0.0-13.el9.aarch64.rpm qemu-kvm-common-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-core-7.0.0-13.el9.aarch64.rpm qemu-kvm-core-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-debugsource-7.0.0-13.el9.aarch64.rpm qemu-kvm-device-display-virtio-gpu-7.0.0-13.el9.aarch64.rpm qemu-kvm-device-display-virtio-gpu-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-device-display-virtio-gpu-gl-7.0.0-13.el9.aarch64.rpm qemu-kvm-device-display-virtio-gpu-gl-debuginfo-7.0.0-13.el9.aarch64.rpm qemu-kvm-device-display-virtio-gpu-pci-7.0.0-13.el9.aarch64.rpm qemu-kvm-device-display-virtio-gpu-pci-debuginfo-7.0.0-13.el9.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2022:7967-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7967
Issue date: 2022-11-15

Topic

An update for qemu-kvm is now available for Red Hat Enterprise Linux 9.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux heap overflow virtualization qemu-kvm DMA issue

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1477099 - virtio-iommu (including ACPI, VHOST/VFIO integration, migration support)

1708300 - RFE: qemu-nbd vs NBD_FLAG_CAN_MULTI_CONN

1879437 - Qemu coredump when refreshing block limits on an actively used iothread block device [rhel.9]

1904267 - Q35: Support SMBIOS 3.0 Entry Point Type

1951118 - CVE-2021-3507 QEMU: fdc: heap buffer overflow in DMA read data transfers1968509 - Use MSG_ZEROCOPY on QEMU Live Migration

1973784 - CVE-2021-3611 QEMU: intel-hda: segmentation fault due to stack overflow

1982600 - qemu-kvm -help reports -spice despite not being compiled

1995710 - RFE: Allow virtio-scsi CD-ROM media change with IOThreads

1999073 - CVE-2021-3750 QEMU: hcd-ehci: DMA reentrancy issue leads to use-after-free

2020993 - 'qemu-img convert' to Qcow2 Images over RBD Failed

2023977 - Duplicate SMBIOS handles when creating large VMs

2026955 - RFE: set default resolution/EDID info to a more sensible modern size like 1280x800 (WXGA)

2035002 - CVE-2021-4158 QEMU: NULL pointer dereference in pci_write() in hw/acpi/pcihp.c

2037612 - [Win11][tpm][QL41112 PF] vfio_listener_region_add received unaligned region

2041823 - [aarch64][numa] When there are at least 6 Numa nodes serial log shows 'arch topology borken'

2044162 - [RHEL9.1] Enable virtio-mem as tech-preview on ARM64 QEMU

2046029 - [WRB] New machine type property - dtb-kaslr-seed

2060839 - Consider deprecating CPU models like "kvm64" / "qemu64" on RHEL 9

Read the Full Advisory

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