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ALSA-2021:5238
Not scored
Low: virt:rhel and virt-devel:rhel security update
Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.
Security Fix(es):
* QEMU: off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c (CVE-2021-3930)
* QEMU: net: e1000: infinite loop while processing transmit descriptors (CVE-2021-20257)
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.
Exploit probability
Not scored
Published
December 21, 2021
Required by
Not available
Last source change
February 4, 2026
02 / AFFECTED SOFTWARE
Affected packages
AlmaLinux:8
virt-v2v
AlmaLinux:8
perl-Sys-Guestfs
AlmaLinux:8
nbdkit-xz-filter
AlmaLinux:8
libvirt-daemon
AlmaLinux:8
libvirt-daemon-driver-nodedev
AlmaLinux:8
libvirt-daemon-driver-secret
AlmaLinux:8
python3-libnbd
AlmaLinux:8
sgabios
AlmaLinux:8
libvirt-nss
AlmaLinux:8
ruby-hivex
AlmaLinux:8
ruby-libguestfs
AlmaLinux:8
libvirt-daemon-kvm
AlmaLinux:8
sgabios-bin
AlmaLinux:8
libguestfs-gfs2
AlmaLinux:8
qemu-kvm-block-ssh
AlmaLinux:8
libguestfs-winsupport
AlmaLinux:8
nbdkit-example-plugins
AlmaLinux:8
qemu-kvm-block-rbd
AlmaLinux:8
supermin
AlmaLinux:8
python3-libvirt
AlmaLinux:8
libvirt-libs
AlmaLinux:8
libguestfs-bash-completion
AlmaLinux:8
qemu-kvm
AlmaLinux:8
libvirt
AlmaLinux:8
libguestfs-java-devel
AlmaLinux:8
perl-hivex
AlmaLinux:8
libvirt-daemon-driver-storage-logical
AlmaLinux:8
nbdkit-basic-plugins
AlmaLinux:8
libguestfs-javadoc
AlmaLinux:8
netcf-libs
AlmaLinux:8
perl-Sys-Virt
AlmaLinux:8
libguestfs-benchmarking
AlmaLinux:8
libvirt-daemon-driver-storage-scsi
AlmaLinux:8
python3-libguestfs
AlmaLinux:8
libguestfs-gobject-devel
AlmaLinux:8
seabios-bin
AlmaLinux:8
libguestfs-gobject
AlmaLinux:8
nbdkit-ssh-plugin
AlmaLinux:8
nbdkit-basic-filters
AlmaLinux:8
nbdkit-bash-completion
AlmaLinux:8
libvirt-lock-sanlock
AlmaLinux:8
libguestfs-rescue
AlmaLinux:8
libiscsi
AlmaLinux:8
python3-hivex
AlmaLinux:8
libvirt-daemon-driver-storage-gluster
AlmaLinux:8
libvirt-bash-completion
AlmaLinux:8
nbdkit
AlmaLinux:8
nbdkit-devel
AlmaLinux:8
libvirt-daemon-driver-storage-rbd
AlmaLinux:8
lua-guestfs
AlmaLinux:8
libguestfs-tools
AlmaLinux:8
libvirt-daemon-config-network
AlmaLinux:8
nbdfuse
AlmaLinux:8
nbdkit-python-plugin
AlmaLinux:8
libguestfs-rsync
AlmaLinux:8
libvirt-dbus
AlmaLinux:8
libvirt-docs
AlmaLinux:8
qemu-img
AlmaLinux:8
libguestfs-tools-c
AlmaLinux:8
netcf
AlmaLinux:8
hivex-devel
AlmaLinux:8
qemu-kvm-block-iscsi
AlmaLinux:8
libvirt-daemon-driver-storage-disk
AlmaLinux:8
nbdkit-vddk-plugin
AlmaLinux:8
libvirt-daemon-driver-storage-iscsi
AlmaLinux:8
libvirt-daemon-driver-nwfilter
AlmaLinux:8
libvirt-devel
AlmaLinux:8
libguestfs-man-pages-uk
AlmaLinux:8
libvirt-client
AlmaLinux:8
libnbd
AlmaLinux:8
libguestfs-man-pages-ja
AlmaLinux:8
libvirt-daemon-driver-network
AlmaLinux:8
virt-dib
AlmaLinux:8
libvirt-daemon-driver-storage-core
AlmaLinux:8
hivex
AlmaLinux:8
nbdkit-server
AlmaLinux:8
libnbd-devel
AlmaLinux:8
seabios
AlmaLinux:8
qemu-kvm-block-gluster
AlmaLinux:8
qemu-kvm-core
AlmaLinux:8
libvirt-daemon-driver-qemu
AlmaLinux:8
libvirt-daemon-config-nwfilter
AlmaLinux:8
libguestfs-xfs
AlmaLinux:8
libiscsi-devel
AlmaLinux:8
nbdkit-curl-plugin
AlmaLinux:8
libiscsi-utils
AlmaLinux:8
libvirt-daemon-driver-storage-iscsi-direct
AlmaLinux:8
supermin-devel
AlmaLinux:8
libvirt-daemon-driver-storage
AlmaLinux:8
qemu-guest-agent
AlmaLinux:8
libguestfs
AlmaLinux:8
libvirt-daemon-driver-storage-mpath
AlmaLinux:8
libguestfs-inspect-icons
AlmaLinux:8
netcf-devel
AlmaLinux:8
libguestfs-java
AlmaLinux:8
qemu-kvm-common
AlmaLinux:8
nbdkit-linuxdisk-plugin
AlmaLinux:8
libvirt-daemon-driver-interface
AlmaLinux:8
nbdkit-gzip-plugin
AlmaLinux:8
qemu-kvm-block-curl
AlmaLinux:8
seavgabios-bin
AlmaLinux:8
libvirt-admin
AlmaLinux:8
libguestfs-devel
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
ALSA-2021:5238
Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.
Security Fix(es):
* QEMU: off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c (CVE-2021-3930)
* QEMU: net: e1000: infinite loop while processing transmit descriptors (CVE-2021-20257)
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.
View original source ↗
05 / REFERENCES
Further evidence