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An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade libssh2 | Mar 22, 2019 | Mar 21, 2019 |
| Amazon Linux Ami 2 | — | Upgrade libssh2-develUpgrade libssh2-docsUpgrade libssh2-debuginfoUpgrade libssh2 | Apr 27, 2020 | Mar 21, 2019 |
| Amazon_linux | — | Upgrade libssh2 | Aug 13, 2019 | Mar 19, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Mar 21, 2019 |
| Centos_linux | — | Upgrade libguestfs-benchmarking-debuginfoUpgrade ruby-libguestfsUpgrade libssh2-debugsourceUpgrade libguestfs-debuginfoUpgrade netcf-libs-debuginfoUpgrade qemu-kvm-block-ssh-debuginfoUpgrade qemu-kvm-debuginfoUpgrade libiscsi-debugsourceUpgrade libguestfs-gobjectUpgrade libiscsi-utilsUpgrade libvirt-daemon-driver-storage-mpathUpgrade libvirt-daemon-driver-nodedevUpgrade perl-Sys-GuestfsUpgrade libguestfs-rescueUpgrade netcf-develUpgrade libguestfs-winsupportUpgrade virt-v2v-debuginfoUpgrade nbdkit-basic-pluginsUpgrade netcf-debugsourceUpgrade libguestfs-java-develUpgrade qemu-guest-agent-debuginfoUpgrade libvirt-client-debuginfoUpgrade libvirt-debuginfoUpgrade qemu-kvm-block-rbdUpgrade libguestfs-man-pages-jaUpgrade nbdkit-develUpgrade lua-guestfs-debuginfoUpgrade libiscsiUpgrade libvirt-daemon-driver-storage-glusterUpgrade libvirt-bash-completionUpgrade nbdkit-basic-plugins-debuginfoUpgrade qemu-kvm-block-sshUpgrade netcf-debuginfoUpgrade qemu-guest-agentUpgrade libvirt-daemon-driver-storage-logicalUpgrade nbdkit-debugsourceUpgrade libguestfsUpgrade nbdkit-plugin-gzipUpgrade libvirt-daemon-driver-storage-diskUpgrade nbdkit-plugin-python-commonUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade libiscsi-utils-debuginfoUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade qemu-img-debuginfoUpgrade nbdkit-bash-completionUpgrade libvirt-daemon-driver-storage-coreUpgrade hivexUpgrade libvirt-debugsourceUpgrade libvirt-daemon-driver-storage-scsiUpgrade libguestfs-develUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade libssh2-develUpgrade nbdkitUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade virt-dib-debuginfoUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libguestfs-gobject-develUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade libguestfs-tools-cUpgrade sgabiosUpgrade libvirt-lock-sanlockUpgrade libssh2-debuginfoUpgrade perl-Sys-Guestfs-debuginfoUpgrade python3-libguestfsUpgrade libvirtUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade libvirt-dbus-debugsourceUpgrade qemu-imgUpgrade libvirt-lock-sanlock-debuginfoUpgrade qemu-kvm-debugsourceUpgrade libvirt-libsUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade qemu-kvm-coreUpgrade supermin-debugsourceUpgrade qemu-kvm-block-iscsiUpgrade libguestfs-gobject-debuginfoUpgrade libguestfs-rsyncUpgrade python3-libguestfs-debuginfoUpgrade python3-libvirt-debuginfoUpgrade libvirt-daemon-config-nwfilterUpgrade libguestfs-man-pages-ukUpgrade perl-Sys-Virt-debuginfoUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade libvirt-daemon-debuginfoUpgrade supermin-develUpgrade libvirt-nssUpgrade perl-hivexUpgrade libvirt-dbus-debuginfoUpgrade netcf-libsUpgrade perl-hivex-debuginfoUpgrade nbdkit-example-pluginsUpgrade python3-libvirtUpgrade qemu-kvm-block-glusterUpgrade seabios-binUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade nbdkit-plugin-python3Upgrade libguestfs-benchmarkingUpgrade libvirt-daemon-driver-storage-rbdUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade qemu-kvm-block-curlUpgrade libguestfs-xfsUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-adminUpgrade libguestfs-gfs2Upgrade libvirt-admin-debuginfoUpgrade nbdkit-plugin-vddkUpgrade qemu-kvm-block-rbd-debuginfoUpgrade ruby-libguestfs-debuginfoUpgrade libguestfs-debugsourceUpgrade libiscsi-debuginfoUpgrade libguestfs-toolsUpgrade libvirt-daemon-driver-qemuUpgrade ruby-hivexUpgrade supermin-debuginfoUpgrade libiscsi-develUpgrade qemu-kvm-common-debuginfoUpgrade libvirt-daemonUpgrade nbdkit-debuginfoUpgrade libvirt-nss-debuginfoUpgrade qemu-kvm-block-curl-debuginfoUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade netcfUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade hivex-debugsourceUpgrade libguestfs-inspect-iconsUpgrade libvirt-daemon-driver-storage-iscsiUpgrade virt-v2vUpgrade superminUpgrade nbdkit-plugin-xzUpgrade ruby-hivex-debuginfoUpgrade sgabios-binUpgrade python3-hivex-debuginfoUpgrade virt-p2v-makerUpgrade nbdkit-plugin-gzip-debuginfoUpgrade libvirt-develUpgrade qemu-kvm-core-debuginfoUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade libvirt-daemon-driver-networkUpgrade perl-Sys-Virt-debugsourceUpgrade lua-guestfsUpgrade qemu-kvm-block-gluster-debuginfoUpgrade seavgabios-binUpgrade libvirt-daemon-kvmUpgrade virt-dibUpgrade qemu-kvm-commonUpgrade libvirt-daemon-driver-interfaceUpgrade libssh2Upgrade libguestfs-bash-completionUpgrade libguestfs-javaUpgrade nbdkit-plugin-python3-debuginfoUpgrade qemu-kvmUpgrade libvirt-docsUpgrade hivex-debuginfoUpgrade libvirt-daemon-driver-secretUpgrade libvirt-dbusUpgrade perl-Sys-VirtUpgrade hivex-develUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libvirt-libs-debuginfoUpgrade nbdkit-example-plugins-debuginfoUpgrade libssh2-docsUpgrade libvirt-daemon-config-networkUpgrade libvirt-daemon-driver-storageUpgrade libguestfs-javadocUpgrade libvirt-clientUpgrade nbdkit-plugin-xz-debuginfoUpgrade libguestfs-tools-c-debuginfoUpgrade python3-hivexUpgrade libguestfs-java-debuginfoUpgrade seabios | Apr 3, 2019 | Mar 19, 2019 |
| Debian | — | Upgrade libssh2 | Mar 27, 2019 | Mar 21, 2019 |
| Freebsd | — | Upgrade linux-c6-libssh2Upgrade libssh2Upgrade linux-c7-libssh2 | Jul 8, 2019 | Apr 18, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade libssh2 | May 1, 2019 | Mar 21, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade libssh2 | May 1, 2019 | Mar 21, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade libssh2 | May 1, 2019 | Mar 21, 2019 |
| Oracle Solaris | — | Upgrade library/libssh2 to version 1.8.2-11.4.11.0.1.1.0 on Solaris 11.4 | Jul 17, 2019 | Mar 21, 2019 |
| Oracle_linux | — | Upgrade libguestfs-javadocUpgrade python3-libvirtUpgrade libvirt-daemon-driver-interfaceUpgrade qemu-kvm-coreUpgrade libssh2Upgrade libguestfs-winsupportUpgrade libvirt-daemon-driver-storageUpgrade libguestfsUpgrade libvirt-adminUpgrade libvirt-develUpgrade perl-Sys-VirtUpgrade netcf-libsUpgrade libguestfs-tools-cUpgrade libvirt-daemon-kvmUpgrade libvirt-daemon-driver-storage-logicalUpgrade libvirt-daemon-driver-storage-diskUpgrade hivex-develUpgrade libguestfs-man-pages-jaUpgrade libvirt-daemon-config-networkUpgrade ruby-hivexUpgrade libvirt-daemon-config-nwfilterUpgrade nbdkit-plugin-python3Upgrade qemu-kvmUpgrade libvirt-lock-sanlockUpgrade supermin-develUpgrade qemu-kvm-block-iscsiUpgrade virt-p2v-makerUpgrade libguestfs-java-develUpgrade libguestfs-benchmarkingUpgrade libvirt-daemon-driver-storage-mpathUpgrade netcfUpgrade nbdkit-example-pluginsUpgrade libguestfs-gobject-develUpgrade libiscsiUpgrade libguestfs-man-pages-ukUpgrade qemu-imgUpgrade libguestfs-develUpgrade libvirt-dbusUpgrade libguestfs-javaUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-libsUpgrade nbdkitUpgrade libvirt-daemon-driver-secretUpgrade libvirt-daemon-driver-storage-glusterUpgrade nbdkit-plugin-gzipUpgrade nbdkit-plugin-vddkUpgrade libvirt-docsUpgrade libvirt-daemon-driver-storage-iscsiUpgrade virt-dibUpgrade libiscsi-develUpgrade sgabios-binUpgrade libguestfs-gobjectUpgrade nbdkit-bash-completionUpgrade seabios-binUpgrade libguestfs-rsyncUpgrade qemu-kvm-block-rbdUpgrade qemu-guest-agentUpgrade libvirt-daemon-driver-qemuUpgrade qemu-kvm-block-glusterUpgrade libiscsi-utilsUpgrade libvirtUpgrade libvirt-daemonUpgrade qemu-kvm-commonUpgrade libguestfs-bash-completionUpgrade netcf-develUpgrade libvirt-nssUpgrade libvirt-daemon-driver-storage-scsiUpgrade libssh2-docsUpgrade python3-hivexUpgrade ruby-libguestfsUpgrade libvirt-daemon-driver-storage-coreUpgrade nbdkit-plugin-xzUpgrade libvirt-daemon-driver-storage-rbdUpgrade superminUpgrade libguestfs-toolsUpgrade virt-v2vUpgrade seavgabios-binUpgrade perl-hivexUpgrade libvirt-bash-completionUpgrade seabiosUpgrade libguestfs-xfsUpgrade libvirt-daemon-driver-nodedevUpgrade libvirt-clientUpgrade libguestfs-rescueUpgrade perl-Sys-GuestfsUpgrade lua-guestfsUpgrade qemu-kvm-block-sshUpgrade qemu-kvm-block-curlUpgrade libvirt-daemon-driver-networkUpgrade nbdkit-plugin-python-commonUpgrade sgabiosUpgrade python3-libguestfsUpgrade libguestfs-gfs2Upgrade nbdkit-basic-pluginsUpgrade nbdkit-develUpgrade libssh2-develUpgrade hivexUpgrade libguestfs-inspect-icons | Jul 3, 2019 | Mar 13, 2019 |
| Redhat_linux | — | Upgrade nbdkit-example-pluginsUpgrade python3-hivex-debuginfoUpgrade nbdkit-basic-plugins-debuginfoUpgrade libguestfsUpgrade qemu-kvm-block-curlUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade qemu-kvm-block-iscsiUpgrade libssh2-debugsourceUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libvirt-lock-sanlockUpgrade supermin-debuginfoUpgrade virt-dibUpgrade libguestfs-gobjectUpgrade qemu-guest-agent-debuginfoUpgrade nbdkit-plugin-gzipUpgrade qemu-kvm-block-rbdUpgrade libvirt-daemon-driver-storage-scsiUpgrade libguestfs-man-pages-ukUpgrade sgabios-binUpgrade libguestfs-rsyncUpgrade nbdkit-plugin-vddk-debuginfoUpgrade nbdkit-bash-completionUpgrade libssh2-develUpgrade nbdkit-plugin-python-commonUpgrade libguestfs-man-pages-jaUpgrade virt-dib-debuginfoUpgrade nbdkit-debuginfoUpgrade libvirt-adminUpgrade netcf-debugsourceUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade libguestfs-debuginfoUpgrade libguestfs-java-develUpgrade libguestfs-benchmarking-debuginfoUpgrade supermin-debugsourceUpgrade qemu-guest-agentUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade qemu-kvm-common-debuginfoUpgrade libguestfs-javaUpgrade libvirt-develUpgrade netcf-debuginfoUpgrade SLOFUpgrade nbdkit-example-plugins-debuginfoUpgrade python3-libguestfsUpgrade libvirt-daemon-driver-storage-mpathUpgrade libvirt-daemon-driver-storage-coreUpgrade libvirt-bash-completionUpgrade libvirt-daemon-driver-storage-glusterUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade qemu-kvm-debuginfoUpgrade libssh2-debuginfoUpgrade libiscsi-utilsUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade virt-v2v-debuginfoUpgrade libvirt-client-debuginfoUpgrade qemu-kvm-block-gluster-debuginfoUpgrade libguestfs-develUpgrade netcfUpgrade libguestfs-tools-cUpgrade libvirt-dbusUpgrade sgabiosUpgrade libguestfs-winsupportUpgrade nbdkitUpgrade libiscsi-utils-debuginfoUpgrade ruby-libguestfs-debuginfoUpgrade libvirt-libsUpgrade libiscsiUpgrade libvirt-daemon-debuginfoUpgrade nbdkit-plugin-python3Upgrade libvirt-dbus-debuginfoUpgrade qemu-kvm-block-curl-debuginfoUpgrade python3-libvirt-debuginfoUpgrade libguestfs-gobject-debuginfoUpgrade perl-Sys-Virt-debugsourceUpgrade perl-Sys-VirtUpgrade libvirt-daemonUpgrade libguestfs-gobject-develUpgrade qemu-img-debuginfoUpgrade libvirt-debugsourceUpgrade libguestfs-bash-completionUpgrade qemu-kvm-coreUpgrade qemu-kvm-block-sshUpgrade libvirt-daemon-driver-storageUpgrade lua-guestfs-debuginfoUpgrade libiscsi-debuginfoUpgrade libvirt-lock-sanlock-debuginfoUpgrade seavgabios-binUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-clientUpgrade libvirt-daemon-config-networkUpgrade libvirt-daemon-driver-nodedevUpgrade perl-Sys-Guestfs-debuginfoUpgrade nbdkit-plugin-gzip-debuginfoUpgrade libguestfs-javadocUpgrade libguestfs-java-debuginfoUpgrade perl-Sys-GuestfsUpgrade hivex-develUpgrade libvirt-daemon-driver-networkUpgrade qemu-kvm-debugsourceUpgrade libvirtUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libvirt-daemon-driver-secretUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade seabiosUpgrade libguestfs-toolsUpgrade libssh2Upgrade libvirt-daemon-driver-interfaceUpgrade hivex-debugsourceUpgrade libvirt-debuginfoUpgrade nbdkit-develUpgrade libguestfs-rescueUpgrade libssh2-docsUpgrade libiscsi-debugsourceUpgrade netcf-libsUpgrade libguestfs-debugsourceUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade python3-libvirtUpgrade libguestfs-tools-c-debuginfoUpgrade ruby-hivex-debuginfoUpgrade libguestfs-inspect-iconsUpgrade qemu-imgUpgrade netcf-develUpgrade libvirt-nss-debuginfoUpgrade ruby-hivexUpgrade perl-Sys-Virt-debuginfoUpgrade qemu-kvm-commonUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade nbdkit-debugsourceUpgrade perl-hivex-debuginfoUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade netcf-libs-debuginfoUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade lua-guestfsUpgrade libvirt-nssUpgrade seabios-binUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-daemon-kvmUpgrade hivex-debuginfoUpgrade supermin-develUpgrade qemu-kvm-block-rbd-debuginfoUpgrade libvirt-libs-debuginfoUpgrade nbdkit-basic-pluginsUpgrade virt-v2vUpgrade libvirt-daemon-driver-storage-logicalUpgrade qemu-kvm-block-ssh-debuginfoUpgrade libvirt-daemon-driver-storage-rbdUpgrade libguestfs-benchmarkingUpgrade libguestfs-gfs2Upgrade qemu-kvm-core-debuginfoUpgrade libvirt-daemon-driver-storage-diskUpgrade libguestfs-xfsUpgrade libiscsi-develUpgrade libvirt-daemon-driver-qemuUpgrade python3-hivexUpgrade virt-p2v-makerUpgrade libvirt-daemon-driver-storage-iscsiUpgrade python3-libguestfs-debuginfoUpgrade nbdkit-plugin-python3-debuginfoUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade ruby-libguestfsUpgrade nbdkit-plugin-vddkUpgrade libvirt-dbus-debugsourceUpgrade superminUpgrade perl-hivexUpgrade libvirt-admin-debuginfoUpgrade nbdkit-plugin-xz-debuginfoUpgrade hivexUpgrade libvirt-docsUpgrade nbdkit-plugin-xzUpgrade qemu-kvm-block-glusterUpgrade qemu-kvm | Mar 29, 2019 | Mar 21, 2019 |
| Suse | — | Upgrade libssh2-1-x86Upgrade libssh2-1-32bitUpgrade libssh2-1Upgrade libssh2-devel | Mar 20, 2019 | Mar 19, 2019 |
| Ubuntu | — | Upgrade libssh2-1 (Ubuntu Pro) | Mar 22, 2023 | Mar 21, 2019 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Mar 21, 2019 |
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