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 libvirt-daemon-driver-nodedevUpgrade libguestfs-gobjectUpgrade libiscsi-utilsUpgrade netcf-develUpgrade netcf-libs-debuginfoUpgrade qemu-kvm-block-ssh-debuginfoUpgrade nbdkit-basic-plugins-debuginfoUpgrade virt-v2v-debuginfoUpgrade nbdkit-basic-pluginsUpgrade qemu-kvm-block-rbdUpgrade libvirt-daemon-driver-storage-diskUpgrade libvirt-debugsourceUpgrade libvirt-debuginfoUpgrade qemu-img-debuginfoUpgrade libvirt-client-debuginfoUpgrade libvirt-daemon-driver-storage-glusterUpgrade libvirt-bash-completionUpgrade nbdkit-plugin-python-commonUpgrade libiscsi-debugsourceUpgrade libguestfs-man-pages-jaUpgrade nbdkit-debugsourceUpgrade lua-guestfs-debuginfoUpgrade nbdkit-develUpgrade nbdkit-plugin-gzipUpgrade qemu-guest-agentUpgrade libguestfs-java-develUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade libvirt-dbus-debugsourceUpgrade netcf-debuginfoUpgrade perl-Sys-Guestfs-debuginfoUpgrade hivexUpgrade qemu-kvm-debugsourceUpgrade netcf-debugsourceUpgrade libvirtUpgrade libvirt-daemon-driver-storage-scsiUpgrade libvirt-lock-sanlock-debuginfoUpgrade libguestfs-benchmarking-debuginfoUpgrade libguestfs-rescueUpgrade libguestfs-gobject-debuginfoUpgrade qemu-kvm-block-iscsiUpgrade libguestfs-winsupportUpgrade qemu-kvm-block-sshUpgrade qemu-kvm-coreUpgrade supermin-debugsourceUpgrade libiscsi-utils-debuginfoUpgrade libguestfs-rsyncUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade libssh2-develUpgrade libvirt-daemon-driver-storage-coreUpgrade qemu-imgUpgrade python3-libguestfsUpgrade libguestfs-tools-cUpgrade libguestfs-gobject-develUpgrade nbdkitUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libguestfsUpgrade libvirt-daemon-driver-storage-mpathUpgrade qemu-kvm-debuginfoUpgrade libiscsiUpgrade libssh2-debugsourceUpgrade ruby-libguestfsUpgrade qemu-guest-agent-debuginfoUpgrade perl-Sys-GuestfsUpgrade libvirt-daemon-driver-storage-logicalUpgrade libguestfs-develUpgrade nbdkit-bash-completionUpgrade libssh2-debuginfoUpgrade libvirt-lock-sanlockUpgrade virt-dib-debuginfoUpgrade sgabiosUpgrade libguestfs-debuginfoUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade libvirt-libsUpgrade libguestfs-gfs2Upgrade nbdkit-plugin-xzUpgrade netcf-libsUpgrade perl-hivexUpgrade nbdkit-example-plugins-debuginfoUpgrade libvirt-daemon-config-networkUpgrade libvirt-develUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade qemu-kvmUpgrade virt-p2v-makerUpgrade qemu-kvm-core-debuginfoUpgrade superminUpgrade libvirt-daemon-driver-nwfilterUpgrade libguestfs-debugsourceUpgrade ruby-libguestfs-debuginfoUpgrade qemu-kvm-block-rbd-debuginfoUpgrade qemu-kvm-block-curlUpgrade libvirt-daemon-kvmUpgrade nbdkit-plugin-vddkUpgrade libiscsi-debuginfoUpgrade libvirt-adminUpgrade libguestfs-toolsUpgrade nbdkit-plugin-python3-debuginfoUpgrade perl-Sys-Virt-debugsourceUpgrade libvirt-daemon-driver-interfaceUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade libvirt-admin-debuginfoUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade seavgabios-binUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade qemu-kvm-block-gluster-debuginfoUpgrade lua-guestfsUpgrade libvirt-nss-debuginfoUpgrade libvirt-daemon-driver-storage-rbdUpgrade libssh2Upgrade libguestfs-bash-completionUpgrade hivex-debuginfoUpgrade nbdkit-plugin-python3Upgrade supermin-develUpgrade libvirt-nssUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libssh2-docsUpgrade hivex-develUpgrade libvirt-libs-debuginfoUpgrade perl-Sys-VirtUpgrade ruby-hivexUpgrade libguestfs-benchmarkingUpgrade libvirt-daemon-driver-qemuUpgrade libguestfs-tools-c-debuginfoUpgrade libguestfs-java-debuginfoUpgrade libvirt-docsUpgrade libvirt-daemon-driver-storage-iscsiUpgrade sgabios-binUpgrade nbdkit-debuginfoUpgrade perl-Sys-Virt-debuginfoUpgrade qemu-kvm-block-glusterUpgrade nbdkit-plugin-gzip-debuginfoUpgrade libguestfs-inspect-iconsUpgrade python3-libvirtUpgrade libguestfs-man-pages-ukUpgrade python3-libvirt-debuginfoUpgrade perl-hivex-debuginfoUpgrade seabios-binUpgrade libvirt-clientUpgrade seabiosUpgrade python3-hivexUpgrade nbdkit-plugin-xz-debuginfoUpgrade libguestfs-javadocUpgrade supermin-debuginfoUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-daemon-driver-secretUpgrade libvirt-daemon-driver-storageUpgrade libvirt-dbusUpgrade libguestfs-javaUpgrade virt-dibUpgrade qemu-kvm-common-debuginfoUpgrade qemu-kvm-commonUpgrade libvirt-daemonUpgrade libiscsi-develUpgrade libguestfs-xfsUpgrade ruby-hivex-debuginfoUpgrade virt-v2vUpgrade libvirt-daemon-debuginfoUpgrade nbdkit-example-pluginsUpgrade libvirt-dbus-debuginfoUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade python3-libguestfs-debuginfoUpgrade hivex-debugsourceUpgrade libvirt-daemon-driver-networkUpgrade qemu-kvm-block-curl-debuginfoUpgrade python3-hivex-debuginfoUpgrade netcfUpgrade libvirt-daemon-driver-interface-debuginfo | 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-winsupportUpgrade virt-dibUpgrade libguestfs-tools-cUpgrade libvirt-adminUpgrade hivex-develUpgrade libvirt-daemon-driver-storage-diskUpgrade libvirt-daemon-driver-interfaceUpgrade libguestfs-gobjectUpgrade libguestfs-javadocUpgrade libssh2Upgrade libvirt-daemon-kvmUpgrade libguestfs-benchmarkingUpgrade libguestfs-gobject-develUpgrade libvirt-daemon-driver-storageUpgrade supermin-develUpgrade python3-libvirtUpgrade libvirt-daemon-config-networkUpgrade libvirt-daemon-driver-storage-mpathUpgrade qemu-kvmUpgrade libiscsi-develUpgrade libguestfs-java-develUpgrade perl-Sys-VirtUpgrade nbdkit-bash-completionUpgrade libvirt-daemon-driver-storage-iscsiUpgrade seabios-binUpgrade virt-p2v-makerUpgrade nbdkit-example-pluginsUpgrade libguestfsUpgrade sgabios-binUpgrade libvirt-docsUpgrade libvirt-lock-sanlockUpgrade qemu-kvm-block-iscsiUpgrade libguestfs-man-pages-ukUpgrade netcfUpgrade nbdkit-plugin-vddkUpgrade qemu-imgUpgrade qemu-kvm-coreUpgrade libvirt-daemon-driver-storage-logicalUpgrade netcf-libsUpgrade libguestfs-develUpgrade libiscsiUpgrade ruby-hivexUpgrade nbdkit-plugin-python3Upgrade libguestfs-man-pages-jaUpgrade libvirt-daemon-config-nwfilterUpgrade libguestfs-rsyncUpgrade libvirt-develUpgrade libvirt-dbusUpgrade libvirt-daemon-driver-storage-glusterUpgrade nbdkit-plugin-gzipUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-libsUpgrade libguestfs-javaUpgrade nbdkitUpgrade libvirt-daemon-driver-secretUpgrade libguestfs-toolsUpgrade libvirtUpgrade libvirt-nssUpgrade libvirt-daemon-driver-storage-coreUpgrade python3-hivexUpgrade qemu-kvm-block-glusterUpgrade nbdkit-develUpgrade superminUpgrade perl-Sys-GuestfsUpgrade libvirt-daemon-driver-storage-scsiUpgrade libguestfs-rescueUpgrade libguestfs-bash-completionUpgrade qemu-kvm-block-rbdUpgrade libvirt-daemon-driver-qemuUpgrade libvirt-clientUpgrade qemu-kvm-block-curlUpgrade libguestfs-xfsUpgrade lua-guestfsUpgrade libvirt-daemon-driver-networkUpgrade libvirt-daemonUpgrade nbdkit-plugin-xzUpgrade perl-hivexUpgrade libvirt-bash-completionUpgrade sgabiosUpgrade netcf-develUpgrade libssh2-develUpgrade qemu-guest-agentUpgrade ruby-libguestfsUpgrade seabiosUpgrade libguestfs-inspect-iconsUpgrade libiscsi-utilsUpgrade nbdkit-basic-pluginsUpgrade seavgabios-binUpgrade qemu-kvm-commonUpgrade python3-libguestfsUpgrade libvirt-daemon-driver-nodedevUpgrade hivexUpgrade qemu-kvm-block-sshUpgrade libvirt-daemon-driver-storage-rbdUpgrade virt-v2vUpgrade libguestfs-gfs2Upgrade nbdkit-plugin-python-commonUpgrade libssh2-docs | Jul 3, 2019 | Mar 13, 2019 |
| Redhat_linux | — | Upgrade libvirt-daemon-driver-networkUpgrade libvirt-daemon-driver-storage-rbdUpgrade qemu-kvm-core-debuginfoUpgrade libvirtUpgrade libguestfs-gfs2Upgrade nbdkit-basic-pluginsUpgrade virt-v2vUpgrade seavgabios-binUpgrade libvirt-nssUpgrade hivex-debugsourceUpgrade nbdkit-debugsourceUpgrade libvirt-daemon-kvmUpgrade libguestfs-benchmarkingUpgrade libguestfs-java-debuginfoUpgrade libiscsi-debugsourceUpgrade qemu-kvm-debugsourceUpgrade nbdkit-plugin-gzip-debuginfoUpgrade perl-Sys-Virt-debuginfoUpgrade libguestfs-xfsUpgrade libguestfs-javadocUpgrade python3-libguestfs-debuginfoUpgrade libiscsi-debuginfoUpgrade ruby-hivex-debuginfoUpgrade nbdkit-develUpgrade qemu-kvm-block-glusterUpgrade libvirt-daemon-driver-storage-diskUpgrade lua-guestfsUpgrade ruby-hivexUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade seabiosUpgrade seabios-binUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade libiscsi-develUpgrade perl-Sys-GuestfsUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade virt-p2v-makerUpgrade libguestfs-rescueUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-daemon-driver-storage-iscsiUpgrade qemu-imgUpgrade hivex-develUpgrade superminUpgrade netcf-libs-debuginfoUpgrade perl-hivex-debuginfoUpgrade qemu-kvm-block-rbd-debuginfoUpgrade libvirt-dbus-debugsourceUpgrade libvirt-admin-debuginfoUpgrade supermin-develUpgrade netcf-develUpgrade qemu-kvm-block-ssh-debuginfoUpgrade libvirt-daemon-driver-nodedevUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-lock-sanlock-debuginfoUpgrade nbdkit-plugin-vddkUpgrade libvirt-debuginfoUpgrade perl-hivexUpgrade libvirt-clientUpgrade libvirt-libs-debuginfoUpgrade libvirt-docsUpgrade libvirt-daemon-driver-storage-logicalUpgrade ruby-libguestfsUpgrade nbdkit-plugin-xz-debuginfoUpgrade nbdkit-plugin-python3-debuginfoUpgrade nbdkit-plugin-xzUpgrade libguestfs-toolsUpgrade libguestfs-debugsourceUpgrade libguestfs-tools-c-debuginfoUpgrade netcf-libsUpgrade libssh2-docsUpgrade perl-Sys-Guestfs-debuginfoUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade libguestfs-inspect-iconsUpgrade libvirt-daemon-driver-secretUpgrade python3-hivexUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade python3-libvirtUpgrade libvirt-daemon-driver-qemuUpgrade qemu-kvmUpgrade hivexUpgrade libvirt-daemon-config-networkUpgrade qemu-kvm-commonUpgrade libvirt-nss-debuginfoUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade libvirt-daemon-driver-interfaceUpgrade libssh2Upgrade libvirt-daemon-driver-secret-debuginfoUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade hivex-debuginfoUpgrade libguestfs-debuginfoUpgrade perl-Sys-VirtUpgrade libguestfs-develUpgrade libvirt-debugsourceUpgrade libguestfs-gobjectUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade nbdkit-debuginfoUpgrade libvirt-adminUpgrade libguestfs-man-pages-jaUpgrade libguestfs-gobject-develUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libssh2-debugsourceUpgrade libvirt-daemon-driver-storageUpgrade libiscsi-utilsUpgrade sgabiosUpgrade libvirt-client-debuginfoUpgrade nbdkit-example-plugins-debuginfoUpgrade qemu-kvm-block-gluster-debuginfoUpgrade libvirt-dbusUpgrade virt-v2v-debuginfoUpgrade libguestfs-java-develUpgrade libvirt-daemon-driver-storage-scsiUpgrade libguestfs-tools-cUpgrade qemu-guest-agentUpgrade libvirt-daemon-driver-storage-coreUpgrade netcfUpgrade libssh2-debuginfoUpgrade python3-hivex-debuginfoUpgrade supermin-debugsourceUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libvirt-develUpgrade libvirt-lock-sanlockUpgrade nbdkit-basic-plugins-debuginfoUpgrade libguestfs-man-pages-ukUpgrade libguestfs-javaUpgrade netcf-debuginfoUpgrade libssh2-develUpgrade libvirt-daemon-driver-storage-mpathUpgrade libguestfs-rsyncUpgrade qemu-kvm-block-curl-debuginfoUpgrade libguestfs-benchmarking-debuginfoUpgrade libvirt-dbus-debuginfoUpgrade libvirt-daemon-driver-storage-glusterUpgrade nbdkitUpgrade qemu-kvm-debuginfoUpgrade libvirt-libsUpgrade libiscsiUpgrade ruby-libguestfs-debuginfoUpgrade libguestfs-winsupportUpgrade libvirt-bash-completionUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade qemu-kvm-block-sshUpgrade libguestfs-bash-completionUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade python3-libvirt-debuginfoUpgrade python3-libguestfsUpgrade netcf-debugsourceUpgrade perl-Sys-Virt-debugsourceUpgrade qemu-img-debuginfoUpgrade supermin-debuginfoUpgrade nbdkit-example-pluginsUpgrade nbdkit-plugin-gzipUpgrade libiscsi-utils-debuginfoUpgrade lua-guestfs-debuginfoUpgrade qemu-guest-agent-debuginfoUpgrade qemu-kvm-block-curlUpgrade libguestfsUpgrade SLOFUpgrade nbdkit-plugin-python-commonUpgrade virt-dib-debuginfoUpgrade qemu-kvm-common-debuginfoUpgrade qemu-kvm-block-iscsiUpgrade virt-dibUpgrade libguestfs-gobject-debuginfoUpgrade nbdkit-plugin-python3Upgrade qemu-kvm-coreUpgrade qemu-kvm-block-rbdUpgrade nbdkit-bash-completionUpgrade libvirt-daemonUpgrade sgabios-binUpgrade libvirt-daemon-debuginfo | Mar 29, 2019 | Mar 21, 2019 |
| Suse | — | Upgrade libssh2-develUpgrade libssh2-1Upgrade libssh2-1-32bitUpgrade libssh2-1-x86 | 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 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub