vulnerability
Oracle Linux: CVE-2021-3593: ELSA-2021-4191: virt:ol and virt-devel:ol security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:P/I:N/A:N) | Jun 14, 2021 | Dec 10, 2021 | Dec 3, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
Jun 14, 2021
Added
Dec 10, 2021
Modified
Dec 3, 2025
Description
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality.
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality.
Solutions
oracle-linux-upgrade-hivexoracle-linux-upgrade-hivex-develoracle-linux-upgrade-libguestfsoracle-linux-upgrade-libguestfs-bash-completionoracle-linux-upgrade-libguestfs-benchmarkingoracle-linux-upgrade-libguestfs-develoracle-linux-upgrade-libguestfs-gfs2oracle-linux-upgrade-libguestfs-gobjectoracle-linux-upgrade-libguestfs-gobject-develoracle-linux-upgrade-libguestfs-inspect-iconsoracle-linux-upgrade-libguestfs-javaoracle-linux-upgrade-libguestfs-java-develoracle-linux-upgrade-libguestfs-javadocoracle-linux-upgrade-libguestfs-man-pages-jaoracle-linux-upgrade-libguestfs-man-pages-ukoracle-linux-upgrade-libguestfs-rescueoracle-linux-upgrade-libguestfs-rsyncoracle-linux-upgrade-libguestfs-toolsoracle-linux-upgrade-libguestfs-tools-coracle-linux-upgrade-libguestfs-winsupportoracle-linux-upgrade-libguestfs-xfsoracle-linux-upgrade-libiscsioracle-linux-upgrade-libiscsi-develoracle-linux-upgrade-libiscsi-utilsoracle-linux-upgrade-libnbdoracle-linux-upgrade-libnbd-develoracle-linux-upgrade-libvirtoracle-linux-upgrade-libvirt-adminoracle-linux-upgrade-libvirt-bash-completionoracle-linux-upgrade-libvirt-clientoracle-linux-upgrade-libvirt-daemonoracle-linux-upgrade-libvirt-daemon-config-networkoracle-linux-upgrade-libvirt-daemon-config-nwfilteroracle-linux-upgrade-libvirt-daemon-driver-interfaceoracle-linux-upgrade-libvirt-daemon-driver-networkoracle-linux-upgrade-libvirt-daemon-driver-nodedevoracle-linux-upgrade-libvirt-daemon-driver-nwfilteroracle-linux-upgrade-libvirt-daemon-driver-qemuoracle-linux-upgrade-libvirt-daemon-driver-secretoracle-linux-upgrade-libvirt-daemon-driver-storageoracle-linux-upgrade-libvirt-daemon-driver-storage-coreoracle-linux-upgrade-libvirt-daemon-driver-storage-diskoracle-linux-upgrade-libvirt-daemon-driver-storage-glusteroracle-linux-upgrade-libvirt-daemon-driver-storage-iscsioracle-linux-upgrade-libvirt-daemon-driver-storage-iscsi-directoracle-linux-upgrade-libvirt-daemon-driver-storage-logicaloracle-linux-upgrade-libvirt-daemon-driver-storage-mpathoracle-linux-upgrade-libvirt-daemon-driver-storage-rbdoracle-linux-upgrade-libvirt-daemon-driver-storage-scsioracle-linux-upgrade-libvirt-daemon-kvmoracle-linux-upgrade-libvirt-dbusoracle-linux-upgrade-libvirt-develoracle-linux-upgrade-libvirt-docsoracle-linux-upgrade-libvirt-libsoracle-linux-upgrade-libvirt-lock-sanlockoracle-linux-upgrade-libvirt-nssoracle-linux-upgrade-lua-guestfsoracle-linux-upgrade-nbdfuseoracle-linux-upgrade-nbdkitoracle-linux-upgrade-nbdkit-bash-completionoracle-linux-upgrade-nbdkit-basic-filtersoracle-linux-upgrade-nbdkit-basic-pluginsoracle-linux-upgrade-nbdkit-curl-pluginoracle-linux-upgrade-nbdkit-develoracle-linux-upgrade-nbdkit-example-pluginsoracle-linux-upgrade-nbdkit-gzip-pluginoracle-linux-upgrade-nbdkit-linuxdisk-pluginoracle-linux-upgrade-nbdkit-python-pluginoracle-linux-upgrade-nbdkit-serveroracle-linux-upgrade-nbdkit-ssh-pluginoracle-linux-upgrade-nbdkit-vddk-pluginoracle-linux-upgrade-nbdkit-xz-filteroracle-linux-upgrade-netcforacle-linux-upgrade-netcf-develoracle-linux-upgrade-netcf-libsoracle-linux-upgrade-ocaml-hivexoracle-linux-upgrade-ocaml-hivex-develoracle-linux-upgrade-ocaml-libguestfsoracle-linux-upgrade-ocaml-libguestfs-develoracle-linux-upgrade-ocaml-libnbdoracle-linux-upgrade-ocaml-libnbd-develoracle-linux-upgrade-perl-hivexoracle-linux-upgrade-perl-sys-guestfsoracle-linux-upgrade-perl-sys-virtoracle-linux-upgrade-python3-hivexoracle-linux-upgrade-python3-libguestfsoracle-linux-upgrade-python3-libnbdoracle-linux-upgrade-python3-libvirtoracle-linux-upgrade-qemuoracle-linux-upgrade-qemu-block-glusteroracle-linux-upgrade-qemu-block-iscsioracle-linux-upgrade-qemu-block-rbdoracle-linux-upgrade-qemu-commonoracle-linux-upgrade-qemu-guest-agentoracle-linux-upgrade-qemu-imgoracle-linux-upgrade-qemu-kvmoracle-linux-upgrade-qemu-kvm-block-curloracle-linux-upgrade-qemu-kvm-block-glusteroracle-linux-upgrade-qemu-kvm-block-iscsioracle-linux-upgrade-qemu-kvm-block-rbdoracle-linux-upgrade-qemu-kvm-block-sshoracle-linux-upgrade-qemu-kvm-commonoracle-linux-upgrade-qemu-kvm-coreoracle-linux-upgrade-qemu-kvm-testsoracle-linux-upgrade-qemu-system-aarch64oracle-linux-upgrade-qemu-system-aarch64-coreoracle-linux-upgrade-qemu-system-x86oracle-linux-upgrade-qemu-system-x86-coreoracle-linux-upgrade-ruby-hivexoracle-linux-upgrade-ruby-libguestfsoracle-linux-upgrade-seabiosoracle-linux-upgrade-seabios-binoracle-linux-upgrade-seavgabios-binoracle-linux-upgrade-sgabiosoracle-linux-upgrade-sgabios-binoracle-linux-upgrade-superminoracle-linux-upgrade-supermin-develoracle-linux-upgrade-virt-diboracle-linux-upgrade-virt-v2v
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