Upstream information

CVE-2018-10933 at MITRE

Description

A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 6.4
Vector AV:N/AC:L/Au:N/C:P/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
  SUSE
Base Score 9.8
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High

Note from the SUSE Security Team

This issue only affects libssh from www.libssh.org, in server mode operation only, and only on SUSE Linux Enterprise 12 and 15. The libssh2 from www.libssh2.org is not affected, as it only offers client support.

SUSE Bugzilla entry: 1108020 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 12 SP3
  • libssh >= 0.6.3-12.6.1
  • libssh4 >= 0.6.3-12.6.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP3-2018-2320
SUSE Linux Enterprise Module for Basesystem 15
  • libssh >= 0.7.5-6.3.1
  • libssh-devel >= 0.7.5-6.3.1
  • libssh4 >= 0.7.5-6.3.1
  • libssh4-32bit >= 0.7.5-6.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-2018-2244
SUSE Linux Enterprise Software Development Kit 12 SP3
  • libssh >= 0.6.3-12.6.1
  • libssh-devel >= 0.6.3-12.6.1
  • libssh-devel-doc >= 0.6.3-12.6.1
  • libssh4 >= 0.6.3-12.6.1
Patchnames:
SUSE-SLE-SDK-12-SP3-2018-2320
SUSE Linux Enterprise Workstation Extension 12 SP3
  • libssh >= 0.6.3-12.6.1
  • libssh4 >= 0.6.3-12.6.1
Patchnames:
SUSE-SLE-WE-12-SP3-2018-2320
openSUSE Leap 15.0
  • libssh >= 0.7.5-lp150.5.3.1
  • libssh-debugsource >= 0.7.5-lp150.5.3.1
  • libssh-devel >= 0.7.5-lp150.5.3.1
  • libssh-devel-doc >= 0.7.5-lp150.5.3.1
  • libssh4 >= 0.7.5-lp150.5.3.1
  • libssh4-32bit >= 0.7.5-lp150.5.3.1
  • libssh4-32bit-debuginfo >= 0.7.5-lp150.5.3.1
  • libssh4-debuginfo >= 0.7.5-lp150.5.3.1
Patchnames:
openSUSE-2018-1180
openSUSE Leap 42.3
  • libssh >= 0.6.3-17.1
  • libssh-debugsource >= 0.6.3-17.1
  • libssh-devel >= 0.6.3-17.1
  • libssh-devel-doc >= 0.6.3-17.1
  • libssh4 >= 0.6.3-17.1
  • libssh4-32bit >= 0.6.3-17.1
  • libssh4-debuginfo >= 0.6.3-17.1
  • libssh4-debuginfo-32bit >= 0.6.3-17.1
Patchnames:
openSUSE-2018-1207


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
CaaS Platform 2.0 libssh2_org Not affected
CaaS Platform 3.0 libssh2_org Not affected
OpenStack Cloud Magnum Orchestration 7.0 libssh2_org Not affected
SUSE Linux Enterprise Desktop 12 SP3 libssh Released
SUSE Linux Enterprise Desktop 12 SP3 libssh2_org Not affected
SUSE Linux Enterprise Module for Basesystem 15 GA libssh Released
SUSE Linux Enterprise Module for Basesystem 15 GA libssh2_org Not affected
SUSE Linux Enterprise SDK 11 SP4 libssh Not affected
SUSE Linux Enterprise SDK 11 SP4 libssh2_org Not affected
SUSE Linux Enterprise SDK 12 SP3 libssh Released
SUSE Linux Enterprise SDK 12 SP3 libssh2_org Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS libssh2_org Not affected
SUSE Linux Enterprise Server 11 SP4 libssh2_org Not affected
SUSE Linux Enterprise Server 12 GA LTSS libssh2_org Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS libssh2_org Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS libssh2_org Not affected
SUSE Linux Enterprise Server 12 SP3 libssh2_org Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP3 libssh2_org Not affected
SUSE Linux Enterprise Server for SAP Applications 12 GA libssh2_org Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 libssh2_org Not affected
SUSE Linux Enterprise Workstation Extension 12 SP3 libssh Released