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-debuginfoUpgrade libssh2Upgrade libssh2-devel | 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 libvirt-daemon-config-networkUpgrade netcf-debugsourceUpgrade libvirt-develUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade perl-Sys-Virt-debugsourceUpgrade libguestfs-tools-cUpgrade qemu-kvm-block-iscsiUpgrade libvirt-daemon-driver-storage-mpathUpgrade nbdkit-debuginfoUpgrade libiscsi-debuginfoUpgrade ruby-libguestfs-debuginfoUpgrade netcfUpgrade libvirt-daemon-driver-nwfilterUpgrade libiscsi-utilsUpgrade libvirt-daemon-debuginfoUpgrade libvirt-clientUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade libvirt-daemon-kvmUpgrade nbdkit-plugin-gzip-debuginfoUpgrade hivex-develUpgrade libvirt-dbus-debuginfoUpgrade nbdkit-plugin-python3Upgrade libvirt-daemon-driver-storage-rbdUpgrade libiscsi-develUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade libguestfs-java-debuginfoUpgrade libvirt-daemon-driver-nodedevUpgrade supermin-develUpgrade libguestfs-tools-c-debuginfoUpgrade python3-libguestfsUpgrade libssh2-debuginfoUpgrade supermin-debuginfoUpgrade qemu-img-debuginfoUpgrade libvirt-dbusUpgrade nbdkit-plugin-xzUpgrade libssh2-develUpgrade virt-p2v-makerUpgrade hivex-debuginfoUpgrade python3-hivex-debuginfoUpgrade python3-libvirt-debuginfoUpgrade seabios-binUpgrade nbdkit-example-pluginsUpgrade virt-dib-debuginfoUpgrade seabiosUpgrade qemu-kvm-block-curl-debuginfoUpgrade libguestfs-develUpgrade python3-hivexUpgrade libguestfs-debugsourceUpgrade libvirt-lock-sanlock-debuginfoUpgrade libvirt-adminUpgrade libguestfs-xfsUpgrade libvirt-admin-debuginfoUpgrade libguestfs-rescueUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade libssh2-docsUpgrade libvirt-libsUpgrade libguestfs-rsyncUpgrade libguestfs-bash-completionUpgrade virt-v2vUpgrade libiscsi-utils-debuginfoUpgrade libguestfs-toolsUpgrade sgabios-binUpgrade libvirt-daemonUpgrade libvirt-daemon-driver-secretUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade superminUpgrade qemu-kvm-block-gluster-debuginfoUpgrade supermin-debugsourceUpgrade nbdkitUpgrade libguestfs-gfs2Upgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade qemu-kvm-block-rbd-debuginfoUpgrade qemu-kvm-commonUpgrade qemu-kvm-common-debuginfoUpgrade libguestfs-man-pages-ukUpgrade perl-Sys-VirtUpgrade qemu-guest-agentUpgrade perl-Sys-Virt-debuginfoUpgrade libguestfs-javadocUpgrade netcf-libsUpgrade libvirt-daemon-driver-storage-scsiUpgrade nbdkit-bash-completionUpgrade sgabiosUpgrade qemu-kvm-block-curlUpgrade libvirt-daemon-driver-interfaceUpgrade libvirt-daemon-driver-storage-diskUpgrade libvirt-bash-completionUpgrade libvirt-daemon-driver-storage-logicalUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade lua-guestfsUpgrade lua-guestfs-debuginfoUpgrade virt-v2v-debuginfoUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade nbdkit-debugsourceUpgrade libiscsi-debugsourceUpgrade libguestfs-gobject-debuginfoUpgrade qemu-kvm-core-debuginfoUpgrade nbdkit-plugin-python-commonUpgrade nbdkit-example-plugins-debuginfoUpgrade hivex-debugsourceUpgrade libvirt-daemon-config-nwfilterUpgrade libiscsiUpgrade nbdkit-plugin-vddkUpgrade nbdkit-plugin-python3-debuginfoUpgrade netcf-debuginfoUpgrade python3-libguestfs-debuginfoUpgrade libvirt-debuginfoUpgrade qemu-kvm-debuginfoUpgrade ruby-libguestfsUpgrade libguestfs-inspect-iconsUpgrade perl-hivex-debuginfoUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade libvirt-nss-debuginfoUpgrade nbdkit-basic-pluginsUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade qemu-kvm-block-glusterUpgrade perl-hivexUpgrade libguestfsUpgrade perl-Sys-GuestfsUpgrade seavgabios-binUpgrade ruby-hivex-debuginfoUpgrade libguestfs-benchmarking-debuginfoUpgrade libvirt-daemon-driver-storage-coreUpgrade libvirt-daemon-driver-storageUpgrade libguestfs-java-develUpgrade libvirt-daemon-driver-qemuUpgrade libguestfs-benchmarkingUpgrade libguestfs-debuginfoUpgrade libvirt-libs-debuginfoUpgrade libvirt-docsUpgrade qemu-kvmUpgrade qemu-guest-agent-debuginfoUpgrade python3-libvirtUpgrade nbdkit-plugin-xz-debuginfoUpgrade qemu-kvm-coreUpgrade libguestfs-man-pages-jaUpgrade libguestfs-gobject-develUpgrade libguestfs-javaUpgrade ruby-hivexUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade netcf-libs-debuginfoUpgrade libvirt-debugsourceUpgrade qemu-kvm-debugsourceUpgrade nbdkit-basic-plugins-debuginfoUpgrade netcf-develUpgrade libvirt-daemon-driver-network-debuginfoUpgrade qemu-kvm-block-rbdUpgrade perl-Sys-Guestfs-debuginfoUpgrade libguestfs-winsupportUpgrade libvirt-client-debuginfoUpgrade libvirt-dbus-debugsourceUpgrade libvirt-nssUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libvirtUpgrade nbdkit-develUpgrade qemu-imgUpgrade nbdkit-plugin-gzipUpgrade qemu-kvm-block-ssh-debuginfoUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade libvirt-daemon-driver-networkUpgrade libssh2Upgrade libssh2-debugsourceUpgrade virt-dibUpgrade qemu-kvm-block-sshUpgrade libvirt-daemon-driver-storage-glusterUpgrade libguestfs-gobjectUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libvirt-lock-sanlockUpgrade nbdkit-plugin-vddk-debuginfoUpgrade hivex | 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-c7-libssh2Upgrade libssh2Upgrade linux-c6-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 libvirt-develUpgrade libguestfs-man-pages-ukUpgrade libguestfs-develUpgrade qemu-kvm-block-sshUpgrade nbdkit-plugin-gzipUpgrade libguestfs-man-pages-jaUpgrade libguestfsUpgrade perl-Sys-VirtUpgrade nbdkit-plugin-vddkUpgrade libvirt-daemon-config-nwfilterUpgrade nbdkitUpgrade libvirt-daemon-driver-storageUpgrade libguestfs-java-develUpgrade virt-dibUpgrade sgabios-binUpgrade nbdkit-plugin-python3Upgrade sgabiosUpgrade hivex-develUpgrade qemu-kvm-block-curlUpgrade nbdkit-bash-completionUpgrade libvirt-daemon-driver-storage-scsiUpgrade libssh2Upgrade libiscsiUpgrade libssh2-develUpgrade qemu-guest-agentUpgrade netcfUpgrade nbdkit-plugin-python-commonUpgrade qemu-kvm-block-iscsiUpgrade nbdkit-example-pluginsUpgrade libvirt-daemon-config-networkUpgrade libguestfs-winsupportUpgrade libguestfs-bash-completionUpgrade libvirt-daemonUpgrade libguestfs-javaUpgrade libvirt-libsUpgrade libguestfs-tools-cUpgrade netcf-libsUpgrade libvirt-lock-sanlockUpgrade libiscsi-utilsUpgrade libvirt-adminUpgrade libvirt-daemon-driver-storage-glusterUpgrade libvirt-dbusUpgrade libvirt-daemon-driver-storage-mpathUpgrade libguestfs-rsyncUpgrade libvirt-daemon-driver-storage-logicalUpgrade seabiosUpgrade libiscsi-develUpgrade libguestfs-gobjectUpgrade libguestfs-javadocUpgrade libguestfs-toolsUpgrade libguestfs-rescueUpgrade qemu-kvm-commonUpgrade libguestfs-benchmarkingUpgrade lua-guestfsUpgrade seabios-binUpgrade virt-p2v-makerUpgrade libvirt-nssUpgrade libguestfs-gobject-develUpgrade libvirt-daemon-driver-storage-coreUpgrade ruby-hivexUpgrade libvirt-daemon-driver-secretUpgrade nbdkit-develUpgrade qemu-imgUpgrade libvirt-daemon-driver-nodedevUpgrade libvirt-daemon-driver-interfaceUpgrade libvirt-docsUpgrade python3-libguestfsUpgrade qemu-kvm-block-glusterUpgrade nbdkit-basic-pluginsUpgrade netcf-develUpgrade libvirt-daemon-driver-storage-diskUpgrade ruby-libguestfsUpgrade qemu-kvmUpgrade perl-hivexUpgrade libvirt-daemon-driver-storage-rbdUpgrade libvirt-bash-completionUpgrade hivexUpgrade superminUpgrade supermin-develUpgrade qemu-kvm-coreUpgrade libguestfs-xfsUpgrade qemu-kvm-block-rbdUpgrade libvirt-daemon-driver-qemuUpgrade seavgabios-binUpgrade libvirt-daemon-driver-nwfilterUpgrade perl-Sys-GuestfsUpgrade nbdkit-plugin-xzUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libvirt-clientUpgrade libvirt-daemon-kvmUpgrade libvirt-daemon-driver-networkUpgrade python3-libvirtUpgrade virt-v2vUpgrade libguestfs-inspect-iconsUpgrade python3-hivexUpgrade libssh2-docsUpgrade libvirtUpgrade libguestfs-gfs2 | Jul 3, 2019 | Mar 13, 2019 |
| Redhat_linux | — | Upgrade nbdkitUpgrade perl-Sys-GuestfsUpgrade libvirt-daemon-driver-nodedev-debuginfoUpgrade libvirt-daemon-driver-nodedevUpgrade libvirt-docsUpgrade virt-v2v-debuginfoUpgrade libvirt-daemonUpgrade sgabios-binUpgrade netcf-develUpgrade qemu-kvm-common-debuginfoUpgrade nbdkit-plugin-vddkUpgrade libvirt-libsUpgrade libssh2-docsUpgrade libvirt-daemon-driver-storage-rbd-debuginfoUpgrade libvirt-daemon-driver-storage-core-debuginfoUpgrade libvirt-daemon-config-nwfilterUpgrade libvirt-daemon-driver-storage-logical-debuginfoUpgrade libvirt-dbus-debugsourceUpgrade libguestfs-java-develUpgrade libiscsi-debuginfoUpgrade libiscsi-debugsourceUpgrade libvirt-daemon-driver-storage-scsiUpgrade libvirt-daemon-driver-storage-iscsi-debuginfoUpgrade virt-dibUpgrade libguestfs-gfs2Upgrade libvirt-admin-debuginfoUpgrade libguestfs-develUpgrade ruby-libguestfs-debuginfoUpgrade perl-Sys-VirtUpgrade libvirt-daemon-driver-storage-disk-debuginfoUpgrade libvirt-daemon-driver-storageUpgrade qemu-kvm-block-ssh-debuginfoUpgrade libvirt-daemon-driver-secret-debuginfoUpgrade nbdkit-example-plugins-debuginfoUpgrade python3-libguestfsUpgrade python3-hivexUpgrade perl-Sys-Guestfs-debuginfoUpgrade nbdkit-plugin-python-commonUpgrade libvirt-daemon-driver-storage-coreUpgrade qemu-kvm-debuginfoUpgrade libvirt-daemon-driver-storage-rbdUpgrade netcf-debuginfoUpgrade qemu-kvm-commonUpgrade libvirt-daemon-driver-interfaceUpgrade libguestfs-toolsUpgrade sgabiosUpgrade qemu-kvm-block-gluster-debuginfoUpgrade libguestfs-xfsUpgrade libguestfs-man-pages-jaUpgrade qemu-kvm-block-sshUpgrade qemu-kvm-block-iscsiUpgrade libvirt-daemon-driver-qemu-debuginfoUpgrade libvirt-daemon-driver-nwfilter-debuginfoUpgrade nbdkit-basic-pluginsUpgrade libguestfs-javaUpgrade libguestfs-tools-cUpgrade ruby-hivexUpgrade libvirt-daemon-driver-storage-mpathUpgrade netcf-debugsourceUpgrade perl-hivexUpgrade libvirt-daemon-driver-storage-iscsiUpgrade libvirt-debuginfoUpgrade qemu-kvm-block-rbdUpgrade nbdkit-plugin-xzUpgrade nbdkit-debuginfoUpgrade nbdkit-debugsourceUpgrade libguestfs-benchmarking-debuginfoUpgrade hivex-debuginfoUpgrade netcf-libs-debuginfoUpgrade libguestfs-java-debuginfoUpgrade libguestfs-rescueUpgrade superminUpgrade nbdkit-bash-completionUpgrade libguestfs-rsyncUpgrade perl-Sys-Virt-debuginfoUpgrade libvirt-lock-sanlock-debuginfoUpgrade virt-v2vUpgrade libguestfs-javadocUpgrade libvirt-dbusUpgrade seavgabios-binUpgrade supermin-debugsourceUpgrade libssh2Upgrade libguestfs-debugsourceUpgrade nbdkit-plugin-gzip-debuginfoUpgrade netcfUpgrade libguestfs-bash-completionUpgrade libguestfs-gobject-develUpgrade SLOFUpgrade seabiosUpgrade libvirt-daemon-driver-storage-logicalUpgrade libvirt-daemon-kvmUpgrade libiscsi-develUpgrade libvirt-lock-sanlockUpgrade perl-hivex-debuginfoUpgrade virt-p2v-makerUpgrade qemu-guest-agent-debuginfoUpgrade ruby-libguestfsUpgrade libvirt-daemon-config-networkUpgrade qemu-kvm-block-iscsi-debuginfoUpgrade qemu-kvm-coreUpgrade python3-libguestfs-debuginfoUpgrade libguestfs-gobjectUpgrade libssh2-debugsourceUpgrade nbdkit-plugin-vddk-debuginfoUpgrade libguestfs-tools-c-debuginfoUpgrade libguestfs-debuginfoUpgrade libvirt-adminUpgrade python3-libvirtUpgrade libvirt-daemon-driver-nwfilterUpgrade nbdkit-example-pluginsUpgrade nbdkit-basic-plugins-debuginfoUpgrade nbdkit-plugin-python3Upgrade netcf-libsUpgrade lua-guestfsUpgrade libguestfs-inspect-iconsUpgrade qemu-kvmUpgrade nbdkit-develUpgrade libguestfs-man-pages-ukUpgrade hivex-develUpgrade libvirt-develUpgrade libvirtUpgrade qemu-kvm-core-debuginfoUpgrade supermin-debuginfoUpgrade libguestfs-benchmarkingUpgrade supermin-develUpgrade libvirt-daemon-driver-network-debuginfoUpgrade libguestfs-gobject-debuginfoUpgrade nbdkit-plugin-xz-debuginfoUpgrade qemu-imgUpgrade libvirt-daemon-driver-storage-gluster-debuginfoUpgrade libvirt-debugsourceUpgrade libvirt-bash-completionUpgrade libvirt-daemon-driver-interface-debuginfoUpgrade libvirt-nss-debuginfoUpgrade libguestfsUpgrade ruby-hivex-debuginfoUpgrade hivexUpgrade libvirt-daemon-driver-qemuUpgrade nbdkit-plugin-gzipUpgrade lua-guestfs-debuginfoUpgrade libiscsi-utilsUpgrade libvirt-client-debuginfoUpgrade qemu-img-debuginfoUpgrade libguestfs-winsupportUpgrade python3-hivex-debuginfoUpgrade qemu-kvm-block-glusterUpgrade libiscsi-utils-debuginfoUpgrade libvirt-daemon-driver-storage-mpath-debuginfoUpgrade libvirt-daemon-driver-storage-glusterUpgrade qemu-kvm-block-curlUpgrade nbdkit-plugin-python3-debuginfoUpgrade libvirt-daemon-debuginfoUpgrade libvirt-daemon-driver-storage-diskUpgrade qemu-kvm-block-curl-debuginfoUpgrade libvirt-clientUpgrade libssh2-develUpgrade libvirt-daemon-driver-secretUpgrade seabios-binUpgrade qemu-guest-agentUpgrade libiscsiUpgrade libvirt-daemon-driver-networkUpgrade libvirt-dbus-debuginfoUpgrade libvirt-daemon-driver-storage-scsi-debuginfoUpgrade libvirt-libs-debuginfoUpgrade hivex-debugsourceUpgrade qemu-kvm-debugsourceUpgrade virt-dib-debuginfoUpgrade perl-Sys-Virt-debugsourceUpgrade qemu-kvm-block-rbd-debuginfoUpgrade libssh2-debuginfoUpgrade libvirt-nssUpgrade python3-libvirt-debuginfo | Mar 29, 2019 | Mar 25, 2019 |
| Suse | — | Upgrade libssh2-1-32bitUpgrade libssh2-1Upgrade libssh2-1-x86Upgrade libssh2-devel | 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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