An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. 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 25, 2019 | Mar 25, 2019 |
| Amazon Linux Ami 2 | — | Upgrade libssh2-docsUpgrade libssh2-develUpgrade libssh2Upgrade libssh2-debuginfo | Apr 27, 2020 | Mar 25, 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 25, 2019 |
| Centos_linux | — | Upgrade qemu-kvm-block-iscsi-debuginfoUpgrade libiscsi-utilsUpgrade libvirt-daemon-kvmUpgrade qemu-img-debuginfoUpgrade seabiosUpgrade libvirt-clientUpgrade libguestfs-debugsourceUpgrade libvirt-admin-debuginfoUpgrade libvirt-lock-sanlock-debuginfoUpgrade libvirt-dbusUpgrade libvirt-develUpgrade virt-dib-debuginfoUpgrade python3-hivexUpgrade virt-p2v-makerUpgrade libguestfs-rescueUpgrade nbdkit-example-pluginsUpgrade libvirt-daemon-config-networkUpgrade seabios-binUpgrade libiscsi-debuginfoUpgrade nbdkit-plugin-xzUpgrade perl-Sys-Virt-debugsourceUpgrade netcf-debugsourceUpgrade libssh2-docsUpgrade libguestfs-xfsUpgrade python3-libguestfsUpgrade supermin-develUpgrade libguestfs-tools-cUpgrade libssh2-develUpgrade libguestfs-develUpgrade nbdkit-debuginfoUpgrade libguestfs-rsyncUpgrade hivex-debuginfoUpgrade libvirt-adminUpgrade libvirt-daemon-driver-storage-rbdUpgrade libguestfs-tools-c-debuginfoUpgrade python3-hivex-debuginfoUpgrade libguestfs-java-debuginfoUpgrade netcfUpgrade libssh2-debuginfoUpgrade python3-libvirt-debuginfoUpgrade supermin-debuginfoUpgrade sgabios-binUpgrade qemu-kvm-block-curl-debuginfoUpgrade virt-v2vUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade libguestfs-bash-completionUpgrade libguestfs-toolsUpgrade libvirt-libsUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade libvirt-daemon-driver-storage-mpathUpgrade superminUpgrade libvirt-daemonUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade qemu-kvm-block-gluster-debuginfoUpgrade libvirt-daemon-driver-secretUpgrade libiscsi-utils-debuginfoUpgrade libvirt-daemon-driver-nodedevUpgrade libiscsi-develUpgrade qemu-kvm-block-iscsiUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade nbdkit-plugin-python3Upgrade nbdkit-plugin-gzip-debuginfoUpgrade hivex-develUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-dbus-debuginfoUpgrade libvirt-daemon-debuginfoUpgrade ruby-libguestfs-debuginfoUpgrade supermin-debugsourceUpgrade qemu-kvm-common-debuginfoUpgrade netcf-libsUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade libvirt-daemon-driver-storage-scsiUpgrade qemu-guest-agentUpgrade qemu-kvm-block-curlUpgrade qemu-kvm-block-rbd-debuginfoUpgrade perl-Sys-VirtUpgrade libvirt-daemon-driver-interfaceUpgrade libguestfs-man-pages-ukUpgrade nbdkitUpgrade sgabiosUpgrade perl-Sys-Virt-debuginfoUpgrade nbdkit-bash-completionUpgrade libguestfs-gfs2Upgrade libguestfs-javadocUpgrade qemu-kvm-commonUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade python3-libguestfs-debuginfoUpgrade lua-guestfs-debuginfoUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libvirt-daemon-driver-networkUpgrade libvirt-dbus-debugsourceUpgrade qemu-kvm-core-debuginfoUpgrade hivexUpgrade qemu-kvm-debugsourceUpgrade libguestfs-benchmarking-debuginfoUpgrade libvirt-lock-sanlockUpgrade libvirt-debuginfoUpgrade libiscsi-debugsourceUpgrade virt-v2v-debuginfoUpgrade libguestfs-java-develUpgrade libvirt-libs-debuginfoUpgrade libguestfs-benchmarkingUpgrade libvirt-daemon-driver-storage-glusterUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade nbdkit-basic-plugins-debuginfoUpgrade libguestfs-inspect-iconsUpgrade qemu-kvm-block-sshUpgrade netcf-libs-debuginfoUpgrade perl-Sys-Guestfs-debuginfoUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade libssh2Upgrade qemu-kvm-debuginfoUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libvirt-nss-debuginfoUpgrade libvirt-debugsourceUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade nbdkit-basic-pluginsUpgrade virt-dibUpgrade qemu-imgUpgrade nbdkit-plugin-gzipUpgrade libssh2-debugsourceUpgrade nbdkit-develUpgrade ruby-hivex-debuginfoUpgrade libguestfs-debuginfoUpgrade libvirt-client-debuginfoUpgrade nbdkit-plugin-python-commonUpgrade nbdkit-example-plugins-debuginfoUpgrade libvirt-daemon-driver-storage-logicalUpgrade libvirt-daemon-driver-storage-diskUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade lua-guestfsUpgrade hivex-debugsourceUpgrade libiscsiUpgrade nbdkit-plugin-vddkUpgrade nbdkit-plugin-python3-debuginfoUpgrade libvirt-daemon-driver-qemuUpgrade libvirt-daemon-driver-storageUpgrade qemu-kvm-block-ssh-debuginfoUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade libvirt-daemon-driver-storage-coreUpgrade nbdkit-debugsourceUpgrade libvirt-docsUpgrade python3-libvirtUpgrade qemu-kvmUpgrade qemu-guest-agent-debuginfoUpgrade qemu-kvm-coreUpgrade nbdkit-plugin-xz-debuginfoUpgrade libguestfs-man-pages-jaUpgrade libguestfs-gobject-debuginfoUpgrade seavgabios-binUpgrade perl-hivexUpgrade perl-Sys-GuestfsUpgrade libguestfsUpgrade qemu-kvm-block-rbdUpgrade netcf-develUpgrade ruby-hivexUpgrade perl-hivex-debuginfoUpgrade libvirt-bash-completionUpgrade libguestfs-javaUpgrade netcf-debuginfoUpgrade libvirt-daemon-config-nwfilterUpgrade libguestfs-gobjectUpgrade libvirtUpgrade libguestfs-winsupportUpgrade libguestfs-gobject-develUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libvirt-nssUpgrade ruby-libguestfsUpgrade qemu-kvm-block-gluster | Apr 3, 2019 | Mar 19, 2019 |
| Debian | — | Upgrade libssh2 | Mar 27, 2019 | Mar 25, 2019 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Sep 18, 2020 |
| 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 25, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade libssh2 | May 1, 2019 | Mar 25, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade libssh2 | May 1, 2019 | Mar 25, 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 25, 2019 |
| Oracle_linux | — | Upgrade nbdkit-basic-pluginsUpgrade libvirt-docsUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libvirt-daemon-driver-storage-coreUpgrade libvirt-daemon-kvmUpgrade virt-v2vUpgrade python3-libvirtUpgrade netcf-develUpgrade libvirtUpgrade libssh2-docsUpgrade libguestfs-gfs2Upgrade libvirt-clientUpgrade libvirt-daemon-driver-networkUpgrade libvirt-bash-completionUpgrade qemu-kvmUpgrade libguestfs-gobjectUpgrade libguestfs-benchmarkingUpgrade lua-guestfsUpgrade hivexUpgrade qemu-kvm-commonUpgrade superminUpgrade python3-hivexUpgrade qemu-kvm-coreUpgrade supermin-develUpgrade python3-libguestfsUpgrade qemu-kvm-block-glusterUpgrade seavgabios-binUpgrade ruby-libguestfsUpgrade libvirt-daemon-driver-nodedevUpgrade libvirt-daemon-driver-storage-rbdUpgrade libvirt-daemon-driver-nwfilterUpgrade qemu-kvm-block-rbdUpgrade libguestfs-toolsUpgrade nbdkit-develUpgrade libvirt-daemon-driver-interfaceUpgrade qemu-imgUpgrade nbdkit-plugin-xzUpgrade perl-Sys-GuestfsUpgrade libguestfs-xfsUpgrade libvirt-daemon-driver-secretUpgrade perl-hivexUpgrade libguestfs-inspect-iconsUpgrade ruby-hivexUpgrade libvirt-daemon-driver-qemuUpgrade libguestfs-rescueUpgrade libiscsi-develUpgrade libguestfs-javadocUpgrade libvirt-nssUpgrade libguestfs-gobject-develUpgrade virt-p2v-makerUpgrade libvirt-daemon-driver-storage-logicalUpgrade seabiosUpgrade seabios-binUpgrade libvirt-daemon-driver-storage-diskUpgrade libvirt-lock-sanlockUpgrade libssh2Upgrade libvirt-daemon-config-networkUpgrade netcf-libsUpgrade qemu-kvm-block-curlUpgrade qemu-guest-agentUpgrade nbdkit-plugin-python-commonUpgrade nbdkit-example-pluginsUpgrade libvirt-daemon-driver-storage-glusterUpgrade libvirt-daemon-config-nwfilterUpgrade sgabios-binUpgrade libguestfs-java-develUpgrade nbdkit-plugin-python3Upgrade libvirt-daemon-driver-storageUpgrade sgabiosUpgrade nbdkitUpgrade virt-dibUpgrade libvirt-daemon-driver-storage-mpathUpgrade libguestfs-javaUpgrade nbdkit-bash-completionUpgrade libvirt-libsUpgrade libguestfs-rsyncUpgrade libguestfs-bash-completionUpgrade libssh2-develUpgrade libvirt-daemonUpgrade netcfUpgrade libvirt-dbusUpgrade qemu-kvm-block-sshUpgrade libiscsiUpgrade qemu-kvm-block-iscsiUpgrade libiscsi-utilsUpgrade hivex-develUpgrade libvirt-develUpgrade libvirt-daemon-driver-storage-scsiUpgrade libguestfsUpgrade perl-Sys-VirtUpgrade nbdkit-plugin-vddkUpgrade nbdkit-plugin-gzipUpgrade libvirt-adminUpgrade libguestfs-man-pages-ukUpgrade libguestfs-man-pages-jaUpgrade libguestfs-develUpgrade libguestfs-tools-cUpgrade libguestfs-winsupport | Jul 3, 2019 | Mar 13, 2019 |
| Redhat_linux | — | Upgrade seabiosUpgrade netcf-libsUpgrade libssh2-develUpgrade libvirt-daemon-driver-secretUpgrade libvirt-daemon-driver-storage-diskUpgrade libguestfs-gobject-develUpgrade libvirtUpgrade libvirt-daemon-debuginfoUpgrade virt-dib-debuginfoUpgrade libguestfs-inspect-iconsUpgrade libvirt-daemon-driver-nwfilterUpgrade libguestfs-gobjectUpgrade libiscsi-develUpgrade SLOFUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libvirt-libs-debuginfoUpgrade libguestfs-debuginfoUpgrade libguestfs-tools-c-debuginfoUpgrade libvirt-nss-debuginfoUpgrade hivexUpgrade libvirt-client-debuginfoUpgrade netcfUpgrade libiscsi-utilsUpgrade libvirt-daemon-driver-qemuUpgrade qemu-kvm-block-curl-debuginfoUpgrade qemu-kvm-core-debuginfoUpgrade supermin-develUpgrade perl-Sys-Virt-debugsourceUpgrade qemu-guest-agent-debuginfoUpgrade ruby-libguestfsUpgrade nbdkit-plugin-xz-debuginfoUpgrade qemu-imgUpgrade libguestfs-gobject-debuginfoUpgrade qemu-kvm-coreUpgrade libiscsi-utils-debuginfoUpgrade qemu-kvm-block-rbd-debuginfoUpgrade libssh2-debuginfoUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade libvirt-dbus-debuginfoUpgrade hivex-develUpgrade libguestfs-man-pages-ukUpgrade libvirt-daemon-kvmUpgrade libguestfs-bash-completionUpgrade libguestfs-winsupportUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade python3-libguestfs-debuginfoUpgrade nbdkit-plugin-python3-debuginfoUpgrade libvirt-bash-completionUpgrade libguestfsUpgrade qemu-kvm-debugsourceUpgrade libvirt-daemon-driver-networkUpgrade nbdkit-develUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade ruby-hivex-debuginfoUpgrade python3-hivex-debuginfoUpgrade libguestfs-benchmarkingUpgrade qemu-kvmUpgrade nbdkit-plugin-python3Upgrade qemu-kvm-block-curlUpgrade supermin-debuginfoUpgrade qemu-kvm-block-glusterUpgrade python3-libvirt-debuginfoUpgrade libvirt-daemon-driver-storage-logicalUpgrade libiscsiUpgrade qemu-guest-agentUpgrade libvirt-lock-sanlockUpgrade nbdkit-example-pluginsUpgrade nbdkit-basic-plugins-debuginfoUpgrade lua-guestfsUpgrade hivex-debugsourceUpgrade python3-libvirtUpgrade libvirt-clientUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade libvirt-debugsourceUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade libvirt-adminUpgrade libvirt-develUpgrade libvirt-daemon-driver-storage-glusterUpgrade virt-p2v-makerUpgrade perl-hivex-debuginfoUpgrade libvirt-daemon-config-networkUpgrade libvirt-nssUpgrade libssh2-debugsourceUpgrade qemu-img-debuginfoUpgrade nbdkit-plugin-gzipUpgrade lua-guestfs-debuginfoUpgrade seabios-binUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade virt-v2v-debuginfoUpgrade qemu-kvm-common-debuginfoUpgrade qemu-kvm-debuginfoUpgrade netcf-debuginfoUpgrade qemu-kvm-block-rbdUpgrade python3-libguestfsUpgrade nbdkit-example-plugins-debuginfoUpgrade ruby-hivexUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libiscsi-debuginfoUpgrade libguestfs-rsyncUpgrade libguestfs-develUpgrade netcf-debugsourceUpgrade libvirt-daemon-driver-storage-mpathUpgrade libguestfs-debugsourceUpgrade libguestfs-benchmarking-debuginfoUpgrade nbdkit-basic-pluginsUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade libguestfs-javaUpgrade nbdkit-plugin-gzip-debuginfoUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade perl-Sys-VirtUpgrade virt-v2vUpgrade perl-hivexUpgrade perl-Sys-GuestfsUpgrade libvirt-daemon-driver-nodedevUpgrade nbdkit-bash-completionUpgrade hivex-debuginfoUpgrade libssh2Upgrade qemu-kvm-block-gluster-debuginfoUpgrade nbdkit-debuginfoUpgrade libvirt-debuginfoUpgrade libiscsi-debugsourceUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade nbdkit-plugin-vddkUpgrade libvirt-dbus-debugsourceUpgrade sgabiosUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-lock-sanlock-debuginfoUpgrade nbdkit-plugin-xzUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade libguestfs-javadocUpgrade libvirt-daemon-driver-storage-coreUpgrade qemu-kvm-commonUpgrade libvirt-daemon-driver-interfaceUpgrade libvirt-docsUpgrade supermin-debugsourceUpgrade libguestfs-xfsUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade libguestfs-java-develUpgrade perl-Sys-Guestfs-debuginfoUpgrade seavgabios-binUpgrade libvirt-admin-debuginfoUpgrade sgabios-binUpgrade libguestfs-toolsUpgrade libvirt-daemon-driver-storageUpgrade libvirt-daemon-driver-storage-scsiUpgrade qemu-kvm-block-iscsiUpgrade libguestfs-gfs2Upgrade nbdkitUpgrade libvirt-daemonUpgrade qemu-kvm-block-ssh-debuginfoUpgrade nbdkit-debugsourceUpgrade libguestfs-java-debuginfoUpgrade virt-dibUpgrade libguestfs-rescueUpgrade libvirt-libsUpgrade superminUpgrade nbdkit-plugin-python-commonUpgrade libguestfs-man-pages-jaUpgrade netcf-libs-debuginfoUpgrade libvirt-daemon-driver-storage-iscsiUpgrade perl-Sys-Virt-debuginfoUpgrade qemu-kvm-block-sshUpgrade libguestfs-tools-cUpgrade netcf-develUpgrade libvirt-dbusUpgrade libvirt-daemon-driver-storage-rbdUpgrade libssh2-docsUpgrade ruby-libguestfs-debuginfoUpgrade python3-hivex | Mar 29, 2019 | Mar 25, 2019 |
| Suse | — | Upgrade libssh2-1-x86Upgrade libssh2-develUpgrade libssh2-1-32bitUpgrade libssh2-1 | Mar 20, 2019 | Mar 19, 2019 |
| Ubuntu | — | Upgrade libssh2-1 (Ubuntu Pro) | Mar 22, 2023 | Mar 25, 2019 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Mar 25, 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