Upstream information

CVE-2018-16860 at MITRE

Description

A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 6
Vector AV:N/AC:M/Au:S/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 7.5
Vector AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector Network Network
Access Complexity High High
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High

Note from the SUSE Security Team

This issue does not affect SUSE samba versions as we are not using the Heimdal based code in our Samba packages.

SUSE Bugzilla entry: 1134024 [RESOLVED / UPSTREAM]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 15.0
  • libheimdal >= 7.7.0-lp150.2.3.1
  • libheimdal-debuginfo >= 7.7.0-lp150.2.3.1
  • libheimdal-debugsource >= 7.7.0-lp150.2.3.1
  • libheimdal-devel >= 7.7.0-lp150.2.3.1
Patchnames:
openSUSE-2019-1682
openSUSE Leap 15.1
  • libheimdal >= 7.7.0-lp151.3.3.1
  • libheimdal-debuginfo >= 7.7.0-lp151.3.3.1
  • libheimdal-debugsource >= 7.7.0-lp151.3.3.1
  • libheimdal-devel >= 7.7.0-lp151.3.3.1
Patchnames:
openSUSE-2019-1682
openSUSE Leap 42.3
  • libheimdal >= 7.7.0-12.1
  • libheimdal-debuginfo >= 7.7.0-12.1
  • libheimdal-debugsource >= 7.7.0-12.1
  • libheimdal-devel >= 7.7.0-12.1
Patchnames:
openSUSE-2019-1682


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 SP3 samba Not affected
SUSE Linux Enterprise Desktop 12 SP4 samba Not affected
SUSE Linux Enterprise High Availability 12 GA samba Not affected
SUSE Linux Enterprise High Availability 12 SP1 samba Not affected
SUSE Linux Enterprise High Availability 12 SP3 samba Not affected
SUSE Linux Enterprise High Availability 12 SP4 samba Not affected
SUSE Linux Enterprise High Availability 15 GA samba Not affected
SUSE Linux Enterprise High Performance Computing 12 samba Not affected
SUSE Linux Enterprise Module for Basesystem 15 GA samba Not affected
SUSE Linux Enterprise SDK 12 SP3 samba Not affected
SUSE Linux Enterprise SDK 12 SP4 samba Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS samba Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS samba Not affected
SUSE Linux Enterprise Server 12 GA LTSS samba Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS samba Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS samba Not affected
SUSE Linux Enterprise Server 12 SP3 samba Not affected
SUSE Linux Enterprise Server 12 SP4 samba Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP3 samba Not affected
SUSE Linux Enterprise Server for SAP Applications 12 GA samba Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 samba Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 samba Not affected
SUSE Storage 5 samba Not affected