vulnerability

CentOS Linux: CVE-2021-3592: Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update (CESA-2021:4191)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
Jun 15, 2021
Added
Nov 10, 2021
Modified
May 25, 2023

Description

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

Solution(s)

centos-upgrade-hivexcentos-upgrade-hivex-debuginfocentos-upgrade-hivex-debugsourcecentos-upgrade-hivex-develcentos-upgrade-libguestfscentos-upgrade-libguestfs-bash-completioncentos-upgrade-libguestfs-benchmarkingcentos-upgrade-libguestfs-benchmarking-debuginfocentos-upgrade-libguestfs-debuginfocentos-upgrade-libguestfs-debugsourcecentos-upgrade-libguestfs-develcentos-upgrade-libguestfs-gfs2centos-upgrade-libguestfs-gobjectcentos-upgrade-libguestfs-gobject-debuginfocentos-upgrade-libguestfs-gobject-develcentos-upgrade-libguestfs-inspect-iconscentos-upgrade-libguestfs-javacentos-upgrade-libguestfs-java-debuginfocentos-upgrade-libguestfs-java-develcentos-upgrade-libguestfs-javadoccentos-upgrade-libguestfs-man-pages-jacentos-upgrade-libguestfs-man-pages-ukcentos-upgrade-libguestfs-rescuecentos-upgrade-libguestfs-rsynccentos-upgrade-libguestfs-toolscentos-upgrade-libguestfs-tools-ccentos-upgrade-libguestfs-tools-c-debuginfocentos-upgrade-libguestfs-winsupportcentos-upgrade-libguestfs-xfscentos-upgrade-libiscsicentos-upgrade-libiscsi-debuginfocentos-upgrade-libiscsi-debugsourcecentos-upgrade-libiscsi-develcentos-upgrade-libiscsi-utilscentos-upgrade-libiscsi-utils-debuginfocentos-upgrade-libnbdcentos-upgrade-libnbd-debuginfocentos-upgrade-libnbd-debugsourcecentos-upgrade-libnbd-develcentos-upgrade-libvirtcentos-upgrade-libvirt-admincentos-upgrade-libvirt-admin-debuginfocentos-upgrade-libvirt-bash-completioncentos-upgrade-libvirt-clientcentos-upgrade-libvirt-client-debuginfocentos-upgrade-libvirt-daemoncentos-upgrade-libvirt-daemon-config-networkcentos-upgrade-libvirt-daemon-config-nwfiltercentos-upgrade-libvirt-daemon-debuginfocentos-upgrade-libvirt-daemon-driver-interfacecentos-upgrade-libvirt-daemon-driver-interface-debuginfocentos-upgrade-libvirt-daemon-driver-networkcentos-upgrade-libvirt-daemon-driver-network-debuginfocentos-upgrade-libvirt-daemon-driver-nodedevcentos-upgrade-libvirt-daemon-driver-nodedev-debuginfocentos-upgrade-libvirt-daemon-driver-nwfiltercentos-upgrade-libvirt-daemon-driver-nwfilter-debuginfocentos-upgrade-libvirt-daemon-driver-qemucentos-upgrade-libvirt-daemon-driver-qemu-debuginfocentos-upgrade-libvirt-daemon-driver-secretcentos-upgrade-libvirt-daemon-driver-secret-debuginfocentos-upgrade-libvirt-daemon-driver-storagecentos-upgrade-libvirt-daemon-driver-storage-corecentos-upgrade-libvirt-daemon-driver-storage-core-debuginfocentos-upgrade-libvirt-daemon-driver-storage-diskcentos-upgrade-libvirt-daemon-driver-storage-disk-debuginfocentos-upgrade-libvirt-daemon-driver-storage-glustercentos-upgrade-libvirt-daemon-driver-storage-gluster-debuginfocentos-upgrade-libvirt-daemon-driver-storage-iscsicentos-upgrade-libvirt-daemon-driver-storage-iscsi-debuginfocentos-upgrade-libvirt-daemon-driver-storage-iscsi-directcentos-upgrade-libvirt-daemon-driver-storage-iscsi-direct-debuginfocentos-upgrade-libvirt-daemon-driver-storage-logicalcentos-upgrade-libvirt-daemon-driver-storage-logical-debuginfocentos-upgrade-libvirt-daemon-driver-storage-mpathcentos-upgrade-libvirt-daemon-driver-storage-mpath-debuginfocentos-upgrade-libvirt-daemon-driver-storage-rbdcentos-upgrade-libvirt-daemon-driver-storage-rbd-debuginfocentos-upgrade-libvirt-daemon-driver-storage-scsicentos-upgrade-libvirt-daemon-driver-storage-scsi-debuginfocentos-upgrade-libvirt-daemon-kvmcentos-upgrade-libvirt-dbuscentos-upgrade-libvirt-dbus-debuginfocentos-upgrade-libvirt-dbus-debugsourcecentos-upgrade-libvirt-debuginfocentos-upgrade-libvirt-debugsourcecentos-upgrade-libvirt-develcentos-upgrade-libvirt-docscentos-upgrade-libvirt-libscentos-upgrade-libvirt-libs-debuginfocentos-upgrade-libvirt-lock-sanlockcentos-upgrade-libvirt-lock-sanlock-debuginfocentos-upgrade-libvirt-nsscentos-upgrade-libvirt-nss-debuginfocentos-upgrade-libvirt-python-debugsourcecentos-upgrade-lua-guestfscentos-upgrade-lua-guestfs-debuginfocentos-upgrade-nbdfusecentos-upgrade-nbdfuse-debuginfocentos-upgrade-nbdkitcentos-upgrade-nbdkit-bash-completioncentos-upgrade-nbdkit-basic-filterscentos-upgrade-nbdkit-basic-filters-debuginfocentos-upgrade-nbdkit-basic-pluginscentos-upgrade-nbdkit-basic-plugins-debuginfocentos-upgrade-nbdkit-curl-plugincentos-upgrade-nbdkit-curl-plugin-debuginfocentos-upgrade-nbdkit-debuginfocentos-upgrade-nbdkit-debugsourcecentos-upgrade-nbdkit-develcentos-upgrade-nbdkit-example-pluginscentos-upgrade-nbdkit-example-plugins-debuginfocentos-upgrade-nbdkit-gzip-plugincentos-upgrade-nbdkit-gzip-plugin-debuginfocentos-upgrade-nbdkit-linuxdisk-plugincentos-upgrade-nbdkit-linuxdisk-plugin-debuginfocentos-upgrade-nbdkit-python-plugincentos-upgrade-nbdkit-python-plugin-debuginfocentos-upgrade-nbdkit-servercentos-upgrade-nbdkit-server-debuginfocentos-upgrade-nbdkit-ssh-plugincentos-upgrade-nbdkit-ssh-plugin-debuginfocentos-upgrade-nbdkit-vddk-plugincentos-upgrade-nbdkit-vddk-plugin-debuginfocentos-upgrade-nbdkit-xz-filtercentos-upgrade-nbdkit-xz-filter-debuginfocentos-upgrade-netcfcentos-upgrade-netcf-debuginfocentos-upgrade-netcf-debugsourcecentos-upgrade-netcf-develcentos-upgrade-netcf-libscentos-upgrade-netcf-libs-debuginfocentos-upgrade-perl-hivexcentos-upgrade-perl-hivex-debuginfocentos-upgrade-perl-sys-guestfscentos-upgrade-perl-sys-guestfs-debuginfocentos-upgrade-perl-sys-virtcentos-upgrade-perl-sys-virt-debuginfocentos-upgrade-perl-sys-virt-debugsourcecentos-upgrade-python3-hivexcentos-upgrade-python3-hivex-debuginfocentos-upgrade-python3-libguestfscentos-upgrade-python3-libguestfs-debuginfocentos-upgrade-python3-libnbdcentos-upgrade-python3-libnbd-debuginfocentos-upgrade-python3-libvirtcentos-upgrade-python3-libvirt-debuginfocentos-upgrade-qemu-guest-agentcentos-upgrade-qemu-guest-agent-debuginfocentos-upgrade-qemu-imgcentos-upgrade-qemu-img-debuginfocentos-upgrade-qemu-kvmcentos-upgrade-qemu-kvm-block-curlcentos-upgrade-qemu-kvm-block-curl-debuginfocentos-upgrade-qemu-kvm-block-glustercentos-upgrade-qemu-kvm-block-gluster-debuginfocentos-upgrade-qemu-kvm-block-iscsicentos-upgrade-qemu-kvm-block-iscsi-debuginfocentos-upgrade-qemu-kvm-block-rbdcentos-upgrade-qemu-kvm-block-rbd-debuginfocentos-upgrade-qemu-kvm-block-sshcentos-upgrade-qemu-kvm-block-ssh-debuginfocentos-upgrade-qemu-kvm-commoncentos-upgrade-qemu-kvm-common-debuginfocentos-upgrade-qemu-kvm-corecentos-upgrade-qemu-kvm-core-debuginfocentos-upgrade-qemu-kvm-debuginfocentos-upgrade-qemu-kvm-debugsourcecentos-upgrade-ruby-hivexcentos-upgrade-ruby-hivex-debuginfocentos-upgrade-ruby-libguestfscentos-upgrade-ruby-libguestfs-debuginfocentos-upgrade-seabioscentos-upgrade-seabios-bincentos-upgrade-seavgabios-bincentos-upgrade-sgabioscentos-upgrade-sgabios-bincentos-upgrade-supermincentos-upgrade-supermin-debuginfocentos-upgrade-supermin-debugsourcecentos-upgrade-supermin-develcentos-upgrade-virt-dibcentos-upgrade-virt-dib-debuginfocentos-upgrade-virt-v2vcentos-upgrade-virt-v2v-debuginfo
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.