Upstream information

CVE-2020-1730 at MITRE

Description

A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.3 5.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Low Low
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1168699 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Container caasp/v4.5/389-ds:1.4.3
Container caasp/v4.5/busybox:1.26.2
Container caasp/v4.5/caasp-dex:2.23.0
Container caasp/v4.5/cert-exporter:2.3.0
Container caasp/v4.5/cert-manager-cainjector:0.15.1
Container caasp/v4.5/cert-manager-controller:0.15.1
Container caasp/v4.5/cert-manager-webhook:0.15.1
Container caasp/v4.5/cilium-etcd-operator:2.0.5
Container caasp/v4.5/cilium-operator:1.7.6
Container caasp/v4.5/cilium:1.7.6
Container caasp/v4.5/configmap-reload:0.3.0
Container caasp/v4.5/coredns:1.6.7
Container caasp/v4.5/curl:7.66.0
Container caasp/v4.5/default-http-backend:0.15.0
Container caasp/v4.5/etcd:3.4.13
Container caasp/v4.5/gangway:3.1.0
Container caasp/v4.5/grafana:7.1.5
Container caasp/v4.5/helm-tiller:2.16.12
Container caasp/v4.5/istio-base:beta
Container caasp/v4.5/istio-pilot:beta
Container caasp/v4.5/istio-proxyv2:beta
Container caasp/v4.5/k8s-sidecar:0.1.75
Container caasp/v4.5/kube-apiserver:v1.18.10
Container caasp/v4.5/kube-controller-manager:v1.18.10
Container caasp/v4.5/kube-proxy:v1.18.10
Container caasp/v4.5/kube-scheduler:v1.18.10
Container caasp/v4.5/kube-state-metrics:1.9.5
Container caasp/v4.5/kubernetes-client:1.18.10
Container caasp/v4.5/kucero:1.3.0
Container caasp/v4.5/kured:1.4.3
Container caasp/v4.5/metrics-server:0.3.6
Container caasp/v4.5/prometheus-alertmanager:0.16.2
Container caasp/v4.5/prometheus-node-exporter:1.0.1
Container caasp/v4.5/prometheus-pushgateway:0.6.0
Container caasp/v4.5/prometheus-server:2.18.0
Container caasp/v4.5/reloader:0.0.58
Container caasp/v4.5/rsyslog:8.39.0
Container caasp/v4.5/skuba-tooling:0.1.0
Container caasp/v4.5/velero-plugin-for-aws:1.1.0
Container caasp/v4.5/velero-plugin-for-gcp:1.1.0
Container caasp/v4.5/velero-plugin-for-microsoft-azure:1.1.0
Container caasp/v4.5/velero-restic-restore-helper:1.4.2
Container caasp/v4.5/velero:1.4.2
Container caasp/v4/389-ds:1.4.2
Container caasp/v4/busybox:1.26.2
Container caasp/v4/caasp-dex:2.16.0
Container caasp/v4/cert-exporter:2.3.0
Container caasp/v4/cilium-etcd-operator:2.0.5
Container caasp/v4/cilium-init:1.5.3
Container caasp/v4/cilium-operator:1.6.6
Container caasp/v4/cilium:1.6.6
Container caasp/v4/cloud-provider-openstack:1.15.0
Container caasp/v4/configmap-reload:0.3.0
Container caasp/v4/coredns:1.6.7
Container caasp/v4/curl:7.60.0
Container caasp/v4/etcd:3.4.13
Container caasp/v4/gangway:3.1.0
Container caasp/v4/grafana:7.1.5
Container caasp/v4/helm-tiller:2.16.12
Container caasp/v4/hyperkube:v1.17.13
Container caasp/v4/kube-state-metrics:1.9.3
Container caasp/v4/kubernetes-client:1.17.13
Container caasp/v4/kucero:1.3.0
Container caasp/v4/kured:1.3.0
Container caasp/v4/metrics-server:0.3.6
Container caasp/v4/prometheus-alertmanager:0.16.2
Container caasp/v4/prometheus-node-exporter:1.0.1
Container caasp/v4/prometheus-pushgateway:0.6.0
Container caasp/v4/prometheus-server:2.7.1
Container caasp/v4/rsyslog:8.39.0
Container caasp/v4/skuba-tooling:0.1.0
Container caasp/v4/test-update:beta
Container caasp/v4/velero-plugin-for-aws:1.0.1
Container caasp/v4/velero-plugin-for-gcp:1.0.1
Container caasp/v4/velero-plugin-for-microsoft-azure:1.0.1
Container caasp/v4/velero-restic-restore-helper:1.3.1
Container caasp/v4/velero:1.3.1
Container ingress-nginx-controller:0.15.0
Container suse/sle15:15.1
Container suse/sle15:15.2
Container suse/sle15:15.3
Image SLES15-SP1-CHOST-BYOS-Azure
Image SLES15-SP1-CHOST-BYOS-EC2
Image SLES15-SP1-CHOST-BYOS-GCE
Image SLES15-SP2-CHOST-BYOS-Aliyun
Image SLES15-SP2-CHOST-BYOS-Azure
Image SLES15-SP2-CHOST-BYOS-EC2
Image SLES15-SP2-CHOST-BYOS-GCE
Image SLES15-SP2-CHOST-BYOS-OpenStack
Image caasp4/caasp-389-ds-image
Image caasp4/caasp-busybox-image
Image caasp4/caasp-caasp-dex-image
Image caasp4/caasp-cert-exporter-image
Image caasp4/caasp-cilium-etcd-operator-image
Image caasp4/caasp-cilium-image
Image caasp4/caasp-cilium-init-image
Image caasp4/caasp-cilium-operator-image
Image caasp4/caasp-cloud-provider-openstack-image
Image caasp4/caasp-configmap-reload-image
Image caasp4/caasp-coredns-image
Image caasp4/caasp-curl-image
Image caasp4/caasp-etcd-image
Image caasp4/caasp-gangway-image
Image caasp4/caasp-grafana-image
Image caasp4/caasp-helm-tiller-image
Image caasp4/caasp-hyperkube-image
Image caasp4/caasp-k8s-sidecar-image
Image caasp4/caasp-kube-state-metrics-image
Image caasp4/caasp-kubernetes-client-image
Image caasp4/caasp-kured-image
Image caasp4/caasp-metrics-server-image
Image caasp4/caasp-prometheus-alertmanager-image
Image caasp4/caasp-prometheus-node-exporter-image
Image caasp4/caasp-prometheus-pushgateway-image
Image caasp4/caasp-prometheus-server-image
Image caasp4/caasp-rsyslog-image
Image caasp4/caasp-test-update-image
Image caasp4/caasp-velero-image
Image caasp4/caasp-velero-plugin-for-aws-image
Image caasp4/caasp-velero-plugin-for-gcp-image
Image caasp4/caasp-velero-plugin-for-microsoft-azure-image
Image caasp4/caasp-velero-restic-restore-helper-image
Image caasp45/caasp-389-ds-image
Image caasp45/caasp-busybox-image
Image caasp45/caasp-caasp-dex-image
Image caasp45/caasp-cert-manager-cainjector-image
Image caasp45/caasp-cert-manager-controller-image
Image caasp45/caasp-cert-manager-webhook-image
Image caasp45/caasp-cilium-etcd-operator-image
Image caasp45/caasp-cilium-image
Image caasp45/caasp-cilium-operator-image
Image caasp45/caasp-configmap-reload-image
Image caasp45/caasp-coredns-image
Image caasp45/caasp-curl-image
Image caasp45/caasp-default-http-backend-image
Image caasp45/caasp-etcd-image
Image caasp45/caasp-gangway-image
Image caasp45/caasp-grafana-image
Image caasp45/caasp-helm-tiller-image
Image caasp45/caasp-ingress-nginx-controller-image
Image caasp45/caasp-istio-base-image
Image caasp45/caasp-istio-pilot-image
Image caasp45/caasp-istio-proxyv2-image
Image caasp45/caasp-k8s-sidecar-image
Image caasp45/caasp-kube-apiserver-image
Image caasp45/caasp-kube-controller-manager-image
Image caasp45/caasp-kube-proxy-image
Image caasp45/caasp-kube-scheduler-image
Image caasp45/caasp-kube-state-metrics-image
Image caasp45/caasp-kubernetes-client-image
Image caasp45/caasp-kucero-image
Image caasp45/caasp-kured-image
Image caasp45/caasp-metrics-server-image
Image caasp45/caasp-prometheus-alertmanager-image
Image caasp45/caasp-prometheus-node-exporter-image
Image caasp45/caasp-prometheus-pushgateway-image
Image caasp45/caasp-prometheus-server-image
Image caasp45/caasp-reloader-image
Image caasp45/caasp-rsyslog-image
Image caasp45/caasp-skuba-tooling-image
Image caasp45/caasp-velero-image
Image caasp45/caasp-velero-plugin-for-aws-image
Image caasp45/caasp-velero-plugin-for-gcp-image
Image caasp45/caasp-velero-plugin-for-microsoft-azure-image
Image caasp45/caasp-velero-restic-restore-helper-image
  • libssh4 >= 0.8.7-10.12.1
Container suse/sles12sp5:latest
  • libssh4 >= 0.8.7-3.9.1
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • libssh >= 0.8.7-10.12.1
  • libssh-devel >= 0.8.7-10.12.1
  • libssh4 >= 0.8.7-10.12.1
  • libssh4-32bit >= 0.8.7-10.12.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP1-2020-967
SUSE Linux Enterprise Module for Basesystem 15 SP2
  • libssh-devel >= 0.8.7-10.12.1
  • libssh4 >= 0.8.7-10.12.1
  • libssh4-32bit >= 0.8.7-10.12.1
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • libssh >= 0.8.7-10.12.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-967
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • libssh >= 0.8.7-3.9.1
  • libssh4 >= 0.8.7-3.9.1
  • libssh4-32bit >= 0.8.7-3.9.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2020-968
SUSE Linux Enterprise Software Development Kit 12 SP5
  • libssh >= 0.8.7-3.9.1
  • libssh-devel >= 0.8.7-3.9.1
  • libssh4 >= 0.8.7-3.9.1
Patchnames:
SUSE-SLE-SDK-12-SP5-2020-968
openSUSE Leap 15.1
  • libssh >= 0.8.7-lp151.2.12.1
  • libssh-debugsource >= 0.8.7-lp151.2.12.1
  • libssh-devel >= 0.8.7-lp151.2.12.1
  • libssh4 >= 0.8.7-lp151.2.12.1
  • libssh4-32bit >= 0.8.7-lp151.2.12.1
  • libssh4-32bit-debuginfo >= 0.8.7-lp151.2.12.1
  • libssh4-debuginfo >= 0.8.7-lp151.2.12.1
Patchnames:
openSUSE-2020-510


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 libssh Not affected
SUSE Linux Enterprise High Performance Computing 12 SP4 libssh Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 libssh Released
SUSE Linux Enterprise High Performance Computing 15 LTSS libssh Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 libssh Released
SUSE Linux Enterprise Server 12 SP4 libssh Not affected
SUSE Linux Enterprise Server 12 SP5 libssh Released
SUSE Linux Enterprise Server 15 LTSS libssh Affected
SUSE Linux Enterprise Server ESPOS 15 libssh Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 libssh Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 libssh Released
SUSE Linux Enterprise Software Development Kit 12 SP4 libssh Not affected
SUSE Linux Enterprise Software Development Kit 12 SP5 libssh Not affected