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 libssh2Upgrade libssh2-debuginfoUpgrade libssh2-develUpgrade libssh2-docs | 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 perl-Sys-Virt-debugsourceUpgrade qemu-kvm-commonUpgrade libssh2-docsUpgrade libguestfs-java-debuginfoUpgrade python3-libguestfsUpgrade libvirt-develUpgrade netcf-debugsourceUpgrade libguestfs-javadocUpgrade netcf-libsUpgrade libvirt-dbusUpgrade libguestfs-tools-c-debuginfoUpgrade libssh2-debuginfoUpgrade qemu-kvm-block-curl-debuginfoUpgrade python3-libvirt-debuginfoUpgrade qemu-kvm-common-debuginfoUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade virt-dib-debuginfoUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade perl-Sys-Virt-debuginfoUpgrade qemu-kvm-block-rbd-debuginfoUpgrade qemu-img-debuginfoUpgrade qemu-kvm-block-curlUpgrade nbdkit-bash-completionUpgrade libvirt-daemon-driver-storage-scsiUpgrade libguestfs-man-pages-ukUpgrade seabiosUpgrade libvirt-admin-debuginfoUpgrade nbdkit-example-pluginsUpgrade libguestfs-xfsUpgrade python3-hivexUpgrade perl-Sys-VirtUpgrade libvirt-daemon-driver-interfaceUpgrade libguestfs-rescueUpgrade libvirt-clientUpgrade libvirt-daemon-config-networkUpgrade libvirt-daemon-driver-storage-mpathUpgrade qemu-guest-agentUpgrade supermin-develUpgrade python3-hivex-debuginfoUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade netcfUpgrade libvirt-dbus-debuginfoUpgrade libvirt-daemon-driver-storage-rbdUpgrade seabios-binUpgrade supermin-debuginfoUpgrade qemu-kvm-block-iscsiUpgrade libvirt-daemon-debuginfoUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade libguestfs-debugsourceUpgrade libvirt-libsUpgrade nbdkit-plugin-gzip-debuginfoUpgrade hivex-develUpgrade libiscsi-develUpgrade ruby-libguestfs-debuginfoUpgrade nbdkit-plugin-python3Upgrade libvirt-daemon-driver-nwfilterUpgrade libguestfs-develUpgrade libvirt-lock-sanlock-debuginfoUpgrade libguestfs-rsyncUpgrade libvirt-adminUpgrade nbdkit-plugin-xzUpgrade libvirt-daemon-driver-nodedevUpgrade nbdkit-debuginfoUpgrade libiscsi-debuginfoUpgrade hivex-debuginfoUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade virt-p2v-makerUpgrade libguestfs-tools-cUpgrade libiscsi-utilsUpgrade supermin-debugsourceUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade sgabios-binUpgrade superminUpgrade virt-v2vUpgrade sgabiosUpgrade libiscsi-utils-debuginfoUpgrade libguestfs-bash-completionUpgrade libvirt-daemonUpgrade libguestfs-toolsUpgrade libvirt-daemon-driver-secretUpgrade qemu-kvm-block-gluster-debuginfoUpgrade nbdkitUpgrade libssh2-develUpgrade libguestfs-gfs2Upgrade libvirt-daemon-kvmUpgrade netcf-debuginfoUpgrade nbdkit-plugin-python3-debuginfoUpgrade nbdkit-plugin-vddkUpgrade libvirt-daemon-driver-storage-logicalUpgrade libvirt-daemon-driver-storage-diskUpgrade libguestfs-gobjectUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libvirt-lock-sanlockUpgrade libguestfs-winsupportUpgrade nbdkit-example-plugins-debuginfoUpgrade libiscsiUpgrade libvirt-daemon-driver-networkUpgrade libssh2-debugsourceUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-bash-completionUpgrade hivex-debugsourceUpgrade qemu-kvm-block-sshUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade nbdkit-plugin-gzipUpgrade qemu-kvm-block-ssh-debuginfoUpgrade libvirt-daemon-driver-storage-glusterUpgrade libssh2Upgrade nbdkit-plugin-python-commonUpgrade lua-guestfsUpgrade seavgabios-binUpgrade perl-Sys-GuestfsUpgrade qemu-kvm-core-debuginfoUpgrade libguestfsUpgrade perl-hivexUpgrade libguestfs-benchmarking-debuginfoUpgrade hivexUpgrade qemu-imgUpgrade virt-dibUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade ruby-hivex-debuginfoUpgrade libvirt-daemon-driver-storageUpgrade libvirt-nssUpgrade qemu-kvm-block-glusterUpgrade libguestfs-gobject-develUpgrade libguestfs-gobject-debuginfoUpgrade perl-hivex-debuginfoUpgrade nbdkit-plugin-xz-debuginfoUpgrade ruby-libguestfsUpgrade libvirt-daemon-driver-qemuUpgrade nbdkit-debugsourceUpgrade qemu-guest-agent-debuginfoUpgrade libguestfs-benchmarkingUpgrade libguestfs-debuginfoUpgrade libguestfs-man-pages-jaUpgrade libvirt-libs-debuginfoUpgrade libguestfs-java-develUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade virt-v2v-debuginfoUpgrade python3-libguestfs-debuginfoUpgrade libvirt-debuginfoUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libiscsi-debugsourceUpgrade lua-guestfs-debuginfoUpgrade nbdkit-basic-plugins-debuginfoUpgrade qemu-kvm-debuginfoUpgrade libguestfs-inspect-iconsUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade perl-Sys-Guestfs-debuginfoUpgrade netcf-libs-debuginfoUpgrade nbdkit-basic-pluginsUpgrade libvirt-debugsourceUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade libvirt-client-debuginfoUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libvirt-nss-debuginfoUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade python3-libvirtUpgrade qemu-kvmUpgrade qemu-kvm-debugsourceUpgrade ruby-hivexUpgrade libvirt-docsUpgrade qemu-kvm-coreUpgrade netcf-develUpgrade libvirtUpgrade qemu-kvm-block-rbdUpgrade libvirt-dbus-debugsourceUpgrade libvirt-daemon-driver-storage-coreUpgrade libguestfs-javaUpgrade libvirt-daemon-driver-storage-iscsiUpgrade nbdkit-devel | 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 qemu-kvm-block-curlUpgrade libguestfs-tools-cUpgrade libiscsiUpgrade perl-Sys-VirtUpgrade libvirt-daemon-driver-storageUpgrade netcfUpgrade nbdkit-example-pluginsUpgrade nbdkit-plugin-python-commonUpgrade libguestfs-winsupportUpgrade qemu-kvm-block-iscsiUpgrade libvirt-daemonUpgrade libguestfs-man-pages-ukUpgrade libvirt-daemon-driver-storage-scsiUpgrade libssh2-develUpgrade qemu-kvm-block-sshUpgrade libguestfs-javaUpgrade libvirt-adminUpgrade nbdkit-plugin-vddkUpgrade libguestfsUpgrade libvirt-daemon-config-networkUpgrade libguestfs-develUpgrade libguestfs-bash-completionUpgrade sgabios-binUpgrade libvirt-lock-sanlockUpgrade libguestfs-man-pages-jaUpgrade libvirt-libsUpgrade nbdkit-plugin-gzipUpgrade libvirt-dbusUpgrade nbdkitUpgrade nbdkit-bash-completionUpgrade netcf-libsUpgrade libvirt-daemon-driver-storage-mpathUpgrade hivex-develUpgrade libvirt-daemon-driver-storage-glusterUpgrade libssh2Upgrade libiscsi-utilsUpgrade libvirt-daemon-config-nwfilterUpgrade libguestfs-rsyncUpgrade nbdkit-plugin-python3Upgrade qemu-guest-agentUpgrade libvirt-develUpgrade libguestfs-java-develUpgrade sgabiosUpgrade virt-dibUpgrade libvirt-daemon-driver-storage-logicalUpgrade qemu-kvm-commonUpgrade libssh2-docsUpgrade python3-libguestfsUpgrade netcf-develUpgrade virt-v2vUpgrade qemu-imgUpgrade libguestfs-gfs2Upgrade libvirt-daemon-driver-secretUpgrade libvirt-daemon-driver-storage-rbdUpgrade perl-hivexUpgrade seavgabios-binUpgrade perl-Sys-GuestfsUpgrade libvirt-daemon-driver-nwfilterUpgrade qemu-kvm-block-rbdUpgrade nbdkit-plugin-xzUpgrade libvirt-nssUpgrade seabiosUpgrade libguestfs-javadocUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libvirt-daemon-kvmUpgrade libvirt-daemon-driver-interfaceUpgrade seabios-binUpgrade libguestfs-rescueUpgrade libiscsi-develUpgrade libguestfs-gobject-develUpgrade libguestfs-gobjectUpgrade libguestfs-benchmarkingUpgrade virt-p2v-makerUpgrade libvirt-daemon-driver-networkUpgrade libvirt-daemon-driver-nodedevUpgrade libguestfs-toolsUpgrade ruby-libguestfsUpgrade lua-guestfsUpgrade supermin-develUpgrade libvirt-daemon-driver-qemuUpgrade superminUpgrade hivexUpgrade libvirt-docsUpgrade libvirt-daemon-driver-storage-diskUpgrade nbdkit-basic-pluginsUpgrade libvirt-bash-completionUpgrade qemu-kvmUpgrade ruby-hivexUpgrade libguestfs-xfsUpgrade qemu-kvm-block-glusterUpgrade nbdkit-develUpgrade libvirt-daemon-driver-storage-coreUpgrade qemu-kvm-coreUpgrade libvirt-clientUpgrade python3-libvirtUpgrade libguestfs-inspect-iconsUpgrade python3-hivexUpgrade libvirt | Jul 3, 2019 | Mar 13, 2019 |
| Redhat_linux | — | Upgrade qemu-kvm-common-debuginfoUpgrade libguestfs-man-pages-jaUpgrade netcf-develUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade libvirt-daemon-driver-storage-mpathUpgrade libguestfs-xfsUpgrade virt-v2vUpgrade virt-dibUpgrade qemu-kvm-block-gluster-debuginfoUpgrade netcf-debugsourceUpgrade hivex-debuginfoUpgrade seavgabios-binUpgrade libguestfs-benchmarking-debuginfoUpgrade nbdkit-basic-pluginsUpgrade libguestfs-javaUpgrade nbdkit-plugin-gzip-debuginfoUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade libguestfs-debugsourceUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade libguestfs-java-debuginfoUpgrade perl-Sys-Virt-debuginfoUpgrade nbdkit-bash-completionUpgrade libiscsi-debugsourceUpgrade superminUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade libvirt-docsUpgrade libguestfs-java-develUpgrade libvirt-libsUpgrade libguestfs-rescueUpgrade netcf-libs-debuginfoUpgrade qemu-kvm-commonUpgrade libvirt-daemon-driver-storage-coreUpgrade nbdkit-plugin-python-commonUpgrade libvirt-daemon-driver-storage-iscsiUpgrade nbdkit-debuginfoUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade libssh2Upgrade qemu-kvm-debuginfoUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade libvirt-debuginfoUpgrade netcf-debuginfoUpgrade libguestfs-rsyncUpgrade nbdkit-plugin-vddkUpgrade libguestfs-javadocUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade nbdkit-plugin-xzUpgrade qemu-kvm-block-sshUpgrade libvirt-lock-sanlock-debuginfoUpgrade libvirt-daemon-driver-interfaceUpgrade libvirt-dbus-debugsourceUpgrade libvirt-daemon-driver-storage-scsiUpgrade nbdkit-debugsourceUpgrade sgabios-binUpgrade libguestfs-tools-cUpgrade libvirt-daemon-driver-storage-rbdUpgrade libvirt-dbusUpgrade perl-Sys-GuestfsUpgrade python3-hivexUpgrade libvirt-daemon-driver-storageUpgrade libguestfs-develUpgrade ruby-hivexUpgrade libvirt-admin-debuginfoUpgrade libvirt-daemonUpgrade python3-libguestfsUpgrade qemu-kvm-block-iscsiUpgrade qemu-kvm-block-ssh-debuginfoUpgrade libiscsi-debuginfoUpgrade libguestfs-toolsUpgrade perl-Sys-Guestfs-debuginfoUpgrade ruby-libguestfs-debuginfoUpgrade qemu-kvm-block-rbdUpgrade libguestfs-gfs2Upgrade libvirt-daemon-driver-secret-debuginfoUpgrade libvirt-daemon-driver-nodedevUpgrade sgabiosUpgrade virt-v2v-debuginfoUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade perl-hivexUpgrade supermin-debugsourceUpgrade libssh2-docsUpgrade nbdkit-example-plugins-debuginfoUpgrade perl-Sys-VirtUpgrade nbdkitUpgrade perl-Sys-Virt-debugsourceUpgrade qemu-kvm-core-debuginfoUpgrade libvirt-develUpgrade libguestfs-tools-c-debuginfoUpgrade lua-guestfs-debuginfoUpgrade libvirt-adminUpgrade libssh2-debugsourceUpgrade libvirt-daemon-driver-nwfilterUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade libguestfs-gobjectUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libvirt-daemon-driver-storage-logicalUpgrade nbdkit-basic-plugins-debuginfoUpgrade libvirt-daemon-driver-network-debuginfoUpgrade supermin-develUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade hivex-debugsourceUpgrade libvirt-daemon-driver-storage-glusterUpgrade libvirtUpgrade libvirt-libs-debuginfoUpgrade libvirt-daemon-config-networkUpgrade ruby-libguestfsUpgrade qemu-guest-agent-debuginfoUpgrade seabiosUpgrade libvirt-nssUpgrade virt-p2v-makerUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade libiscsi-utilsUpgrade libguestfs-benchmarkingUpgrade libvirt-dbus-debuginfoUpgrade libguestfs-debuginfoUpgrade libssh2-develUpgrade libvirt-daemon-driver-secretUpgrade netcf-libsUpgrade seabios-binUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade qemu-kvmUpgrade qemu-kvm-block-curlUpgrade libvirt-daemon-driver-networkUpgrade nbdkit-plugin-python3-debuginfoUpgrade ruby-hivex-debuginfoUpgrade libvirt-daemon-driver-qemuUpgrade nbdkit-plugin-python3Upgrade qemu-kvm-block-rbd-debuginfoUpgrade libvirt-nss-debuginfoUpgrade libiscsiUpgrade virt-dib-debuginfoUpgrade nbdkit-plugin-gzipUpgrade libiscsi-utils-debuginfoUpgrade qemu-kvm-coreUpgrade libvirt-daemon-kvmUpgrade libssh2-debuginfoUpgrade libvirt-client-debuginfoUpgrade SLOFUpgrade nbdkit-plugin-xz-debuginfoUpgrade qemu-kvm-block-curl-debuginfoUpgrade hivexUpgrade netcfUpgrade libguestfsUpgrade qemu-kvm-block-glusterUpgrade libguestfs-bash-completionUpgrade libguestfs-man-pages-ukUpgrade libguestfs-gobject-debuginfoUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade libguestfs-gobject-develUpgrade qemu-imgUpgrade python3-libguestfs-debuginfoUpgrade libguestfs-inspect-iconsUpgrade nbdkit-example-pluginsUpgrade libiscsi-develUpgrade qemu-guest-agentUpgrade qemu-img-debuginfoUpgrade libvirt-debugsourceUpgrade lua-guestfsUpgrade libvirt-lock-sanlockUpgrade nbdkit-develUpgrade python3-libvirtUpgrade libguestfs-winsupportUpgrade perl-hivex-debuginfoUpgrade libvirt-clientUpgrade libvirt-daemon-debuginfoUpgrade supermin-debuginfoUpgrade qemu-kvm-debugsourceUpgrade python3-hivex-debuginfoUpgrade python3-libvirt-debuginfoUpgrade hivex-develUpgrade libvirt-daemon-driver-storage-diskUpgrade libvirt-bash-completion | Mar 29, 2019 | Mar 25, 2019 |
| Suse | — | Upgrade libssh2-develUpgrade libssh2-1-x86Upgrade 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 |
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