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Medium RLSA-2021:3061 5 CVEs

Moderate: virt:rhel and virt-devel:rhel security and bug fix update

Published Aug 10, 2021 · Updated Feb 4, 2026

Summary

Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:Rocky Linux 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: msix: OOB access during mmio operations may lead to DoS (CVE-2020-13754)

* hivex: Buffer overflow when provided invalid node key length (CVE-2021-3504)

* QEMU: net: an assert failure via eth_get_gso_type (CVE-2020-27617)

* QEMU: net: infinite loop in loopback mode may lead to stack overflow (CVE-2021-3416)

* qemu: out-of-bound heap buffer access via an interrupt ID field (CVE-2021-20221)

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.

Bug Fix(es):

* cannot restart default network and firewalld: iptables: No chain/target/match by that name. (BZ#1958301)

* Rocky Linux8.4 Nightly[0322] - KVM guest fails to find zipl boot menu index (qemu-kvm) (BZ#1975679)

Fixed packages 24

ReleasePackageFixed in
Rocky Linux · 8 hivex 0:1.3.18-21.module+el8.4.0+642+7e26f5e1
Rocky Linux · 8 hivex 0:1.3.18-21.module+el8.5.0+670+c4aa478c
Rocky Linux · 8 libguestfs 1:1.40.2-27.module+el8.4.0+534+4680a14e
Rocky Linux · 8 libguestfs-winsupport 0:8.2-1.module+el8.4.0+534+4680a14e
Rocky Linux · 8 libiscsi 0:1.18.0-8.module+el8.7.0+1084+97b81f61
Rocky Linux · 8 libiscsi 0:1.18.0-8.module+el8.4.0+534+4680a14e
Rocky Linux · 8 libiscsi 0:1.18.0-8.module+el8.6.0+847+b490afdd
Rocky Linux · 8 libnbd 0:1.2.2-1.module+el8.4.0+534+4680a14e
Rocky Linux · 8 libvirt 0:6.0.0-35.1.module+el8.4.0+642+7e26f5e1
Rocky Linux · 8 libvirt-dbus 0:1.3.0-2.module+el8.7.0+1084+97b81f61
Rocky Linux · 8 libvirt-dbus 0:1.3.0-2.module+el8.4.0+534+4680a14e
Rocky Linux · 8 libvirt-dbus 0:1.3.0-2.module+el8.6.0+847+b490afdd
Rocky Linux · 8 libvirt-python 0:6.0.0-1.module+el8.4.0+534+4680a14e
Rocky Linux · 8 nbdkit 0:1.16.2-4.module+el8.4.0+534+4680a14e
Rocky Linux · 8 netcf 0:0.2.8-12.module+el8.7.0+1084+97b81f61
Rocky Linux · 8 netcf 0:0.2.8-12.module+el8.4.0+534+4680a14e
Rocky Linux · 8 netcf 0:0.2.8-12.module+el8.6.0+847+b490afdd
Rocky Linux · 8 perl-Sys-Virt 0:6.0.0-1.module+el8.4.0+534+4680a14e
Rocky Linux · 8 qemu-kvm 5:4.2.0-48.module+el8.4.0+534+4680a14e
Rocky Linux · 8 seabios 0:1.13.0-2.module+el8.4.0+534+4680a14e
Rocky Linux · 8 sgabios 1:0.20170427git-3.module+el8.7.0+1084+97b81f61
Rocky Linux · 8 sgabios 1:0.20170427git-3.module+el8.4.0+534+4680a14e
Rocky Linux · 8 sgabios 1:0.20170427git-3.module+el8.6.0+847+b490afdd
Rocky Linux · 8 supermin 0:5.1.19-10.module+el8.4.0+534+4680a14e

Vulnerabilities 5

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1842363
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1891668
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1924601
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1932827
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1949687
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1958301