Upstream information

CVE-2018-15919 at MITRE

Description

Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'

SUSE information

Overall state of this security issue: Resolved

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:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.3 5.3
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact Low Low
Integrity Impact None None
Availability Impact None None
CVSSv3 Version 3 3

Note from the SUSE Security Team

The upstream openssh project does not consider this a security issue. Only existance of users can be determined, users cannot be enumerated by this issue. SUSE is currently not planning to fix this problem.

SUSE Bugzilla entries: 1105010 [RESOLVED / FIXED], 1106163 [RESOLVED / WONTFIX], 1114890 [RESOLVED / DUPLICATE], 1115654 [RESOLVED / FIXED], 1123133 [RESOLVED / FIXED], 1138392 [RESOLVED / FIXED]

SUSE Security Advisories:


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Please note that this evaluation state might be work in progress, incomplete or outdated.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
HPE Helion OpenStack 8 openssh Released
Magnum Orchestration openssh Already fixed
SLES for SAP Applications openssh Already fixed
SLES15-EC2-CHOST-HVM-BYOS openssh In progress
SLES15-SP1-CHOST-BYOS-Azure openssh Ignore
SLES15-SP1-CHOST-BYOS-EC2 openssh Ignore
SLES15-SP1-CHOST-BYOS-GCE openssh Ignore
SLES15-SP2-CHOST-BYOS-Aliyun openssh Ignore
SLES15-SP2-CHOST-BYOS-Azure openssh Ignore
SLES15-SP2-CHOST-BYOS-EC2 openssh Ignore
SLES15-SP2-CHOST-BYOS-GCE openssh Ignore
SLES15-SP3-CHOST-BYOS-Aliyun openssh Ignore
SLES15-SP3-CHOST-BYOS-Azure openssh Ignore
SLES15-SP3-CHOST-BYOS-EC2 openssh Ignore
SLES15-SP3-CHOST-BYOS-GCE openssh Ignore
SLES15-SP4-CHOST-BYOS openssh Ignore
SLES15-SP4-CHOST-BYOS-Aliyun openssh Ignore
SLES15-SP4-CHOST-BYOS-Azure openssh Ignore
SLES15-SP4-CHOST-BYOS-EC2 openssh Ignore
SLES15-SP4-CHOST-BYOS-GCE openssh Ignore
SUSE CaaS Platform 3.0 openssh Already fixed
SUSE CaaS Platform 4.0 openssh Ignore
SUSE Container as a Service Platform 1.0 openssh Affected
SUSE Container as a Service Platform 2.0 openssh Already fixed
SUSE Enterprise Storage 5 openssh Released
SUSE Enterprise Storage 6 openssh Ignore
SUSE Linux Enterprise Desktop 12 SP3 openssh Already fixed
SUSE Linux Enterprise Desktop 12 SP4 openssh Already fixed
SUSE Linux Enterprise Desktop 15 openssh Already fixed
SUSE Linux Enterprise Desktop 15 SP2 openssh Ignore
SUSE Linux Enterprise High Performance Computing 12 SP4 openssh Already fixed
SUSE Linux Enterprise High Performance Computing 12 SP5 openssh Released
SUSE Linux Enterprise High Performance Computing 12 SP5 openssh-askpass-gnome Released
SUSE Linux Enterprise High Performance Computing 15 openssh Already fixed
SUSE Linux Enterprise High Performance Computing 15 LTSS openssh In progress
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS openssh Ignore
SUSE Linux Enterprise High Performance Computing 15 SP2 openssh Ignore
SUSE Linux Enterprise Module for Basesystem 15 openssh Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP2 openssh Ignore
SUSE Linux Enterprise Module for Server Applications 15 openssh Already fixed
SUSE Linux Enterprise Module for Server Applications 15 SP2 openssh Ignore
SUSE Linux Enterprise Point of Service 11 SP3 openssh In progress
SUSE Linux Enterprise Point of Service Image Server 12 SP2 openssh Released
SUSE Linux Enterprise Server 11 SP3 LTSS openssh Released
SUSE Linux Enterprise Server 11 SP4 LTSS openssh In progress
SUSE Linux Enterprise Server 12 LTSS openssh Already fixed
SUSE Linux Enterprise Server 12 SP1 LTSS openssh Already fixed
SUSE Linux Enterprise Server 12 SP2 BCL openssh Released
SUSE Linux Enterprise Server 12 SP2 ESPOS openssh Released
SUSE Linux Enterprise Server 12 SP2 LTSS openssh Released
SUSE Linux Enterprise Server 12 SP3 openssh Already fixed
SUSE Linux Enterprise Server 12 SP3 BCL openssh Released
SUSE Linux Enterprise Server 12 SP3 ESPOS openssh Released
SUSE Linux Enterprise Server 12 SP3 LTSS openssh Released
SUSE Linux Enterprise Server 12 SP4 openssh Already fixed
SUSE Linux Enterprise Server 12 SP4 ESPOS openssh Ignore
SUSE Linux Enterprise Server 12 SP4 LTSS openssh Ignore
SUSE Linux Enterprise Server 12 SP5 openssh Released
SUSE Linux Enterprise Server 12 SP5 openssh-askpass-gnome Released
SUSE Linux Enterprise Server 15 openssh Already fixed
SUSE Linux Enterprise Server 15 ESPOS openssh In progress
SUSE Linux Enterprise Server 15 LTSS openssh In progress
SUSE Linux Enterprise Server 15 SP1 LTSS openssh Ignore
SUSE Linux Enterprise Server 15 SP2 openssh Ignore
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 openssh Ignore
SUSE Linux Enterprise Server for SAP Applications 12 openssh Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP2 openssh Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 openssh Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 openssh Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP5 openssh Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 openssh-askpass-gnome Released
SUSE Linux Enterprise Server for SAP Applications 15 openssh Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP1 openssh Ignore
SUSE Linux Enterprise Server for SAP Applications 15 SP2 openssh Ignore
SUSE Linux Enterprise Storage 7 openssh Ignore
SUSE Manager Proxy 4.1 openssh Ignore
SUSE Manager Retail Branch Server 4.1 openssh Ignore
SUSE Manager Server 4.1 openssh Ignore
SUSE OpenStack Cloud 7 openssh Released
SUSE OpenStack Cloud 8 openssh Released
SUSE OpenStack Cloud 9 openssh Ignore
SUSE OpenStack Cloud Crowbar 8 openssh Released
SUSE OpenStack Cloud Crowbar 9 openssh Ignore
Security Module for SUSE Linux Enterprise 11 openssh-openssl1 Released
ses/7.1/cephcsi/cephcsi
ses/7.1/rook/ceph
ses/7/ceph/ceph
ses/7/cephcsi/cephcsi
ses/7/rook/ceph
suse/manager/4.3/proxy-ssh
suse/sle-micro-rancher/5.2
suse/sle-micro-rancher/5.3
trento/trento-runner
opensshIgnore