Upstream information

CVE-2018-6556 at MITRE

Description

lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.

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 2.1
Vector AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 3.3 5.1
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack Vector Local Local
Attack Complexity Low Low
Privileges Required Low None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact Low Low
Integrity Impact None None
Availability Impact None Low
CVSSv3 Version 3 3
SUSE Bugzilla entries: 1122185 [RESOLVED / FIXED], 1206779 [RESOLVED / FIXED], 988348 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15
  • liblxc-devel >= 3.1.0-bp150.5.3.1
  • liblxc1 >= 3.1.0-bp150.5.3.1
  • lxc >= 3.1.0-bp150.5.3.1
  • lxc-bash-completion >= 3.1.0-bp150.5.3.1
  • lxcfs >= 3.0.3-bp150.3.3.1
  • lxcfs-hooks-lxc >= 3.0.3-bp150.3.3.1
  • pam_cgfs >= 3.1.0-bp150.5.3.1
 Patchnames:
openSUSE-2019-1227
openSUSE-2019-1230
openSUSE Leap 15.0
  • liblxc-devel >= 3.1.0-lp150.2.10.1
  • liblxc1 >= 3.1.0-lp150.2.10.1
  • lxc >= 3.1.0-lp150.2.10.1
  • lxc-bash-completion >= 3.1.0-lp150.2.10.1
  • lxcfs >= 3.0.3-lp150.2.3.1
  • lxcfs-hooks-lxc >= 3.0.3-lp150.2.3.1
  • pam_cgfs >= 3.1.0-lp150.2.10.1
 Patchnames:
openSUSE-2019-1275
openSUSE-2019-596
openSUSE Tumbleweed
  • liblxc-devel >= 4.0.9-1.1
  • liblxc1 >= 4.0.9-1.1
  • lxc >= 4.0.9-1.1
  • lxc-bash-completion >= 4.0.9-1.1
  • pam_cgfs >= 4.0.9-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-11030

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Please note that this evaluation state might be work in progress, incomplete or outdated.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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Micro 5.1 permissions Already fixed
SUSE Linux Enterprise Micro 5.2 permissions Already fixed
SUSE Linux Enterprise Micro 5.3 permissions Affected
SUSE Linux Enterprise Micro 5.4 permissions Affected
SUSE Linux Enterprise Micro 5.5 permissions Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SLES15-SP1-CHOST-BYOS-Azure permissions Already fixed
SLES15-SP1-CHOST-BYOS-EC2 permissions Already fixed
SLES15-SP1-CHOST-BYOS-GCE permissions Already fixed
SLES15-SP2-CHOST-BYOS-Aliyun permissions Already fixed
SLES15-SP2-CHOST-BYOS-Azure permissions Already fixed
SLES15-SP2-CHOST-BYOS-EC2 permissions Already fixed
SLES15-SP2-CHOST-BYOS-GCE permissions Already fixed
SLES15-SP3-CHOST-BYOS-Aliyun permissions Already fixed
SLES15-SP3-CHOST-BYOS-Azure permissions Already fixed
SLES15-SP3-CHOST-BYOS-EC2 permissions Already fixed
SLES15-SP3-CHOST-BYOS-GCE permissions Already fixed
SLES15-SP3-CHOST-BYOS-SAP-CCloud permissions Already fixed
SLES15-SP4-CHOST-BYOS permissions In progress
SLES15-SP4-CHOST-BYOS-Aliyun permissions In progress
SLES15-SP4-CHOST-BYOS-Azure permissions In progress
SLES15-SP4-CHOST-BYOS-EC2 permissions In progress
SLES15-SP4-CHOST-BYOS-GCE permissions In progress
SLES15-SP4-CHOST-BYOS-SAP-CCloud permissions In progress
SUSE Linux Enterprise High Performance Computing 15 SP3 permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4 permissions Released
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS permissions Released
SUSE Linux Enterprise High Performance Computing 15 SP5 permissions Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS permissions Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS permissions Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 permissions Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP4 permissions Released
SUSE Linux Enterprise Module for Basesystem 15 SP5 permissions Affected
SUSE Linux Enterprise Server 15 SP3 permissions Already fixed
SUSE Linux Enterprise Server 15 SP3-LTSS permissions Already fixed
SUSE Linux Enterprise Server 15 SP4 permissions Released
SUSE Linux Enterprise Server 15 SP4-LTSS permissions Released
SUSE Linux Enterprise Server 15 SP5 permissions Affected
SUSE Linux Enterprise Server 15 SP5-LTSS permissions Affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 permissions Already fixed
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 permissions Already fixed
SUSE Manager Proxy 4.3 permissions Released
SUSE Manager Proxy LTS 4.3 permissions Affected
SUSE Manager Retail Branch Server 4.3 permissions Released
SUSE Manager Retail Branch Server LTS 4.3 permissions Affected
SUSE Manager Server 4.3 permissions Released
SUSE Manager Server LTS 4.3 permissions Affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 permissions Ignore
SUSE CaaS Platform 3.0 permissions Ignore
SUSE CaaS Platform 4.0 permissions Already fixed
SUSE CaaS Platform 4.5 permissions Already fixed
SUSE Enterprise Storage 6 permissions Already fixed
SUSE Enterprise Storage 7 permissions Already fixed
SUSE Enterprise Storage 7.1 permissions Already fixed
SUSE Linux Enterprise Desktop 11 SP3 lxc Not affected
SUSE Linux Enterprise Desktop 11 SP4 lxc Unsupported
SUSE Linux Enterprise Desktop 12 SP2 permissions Ignore
SUSE Linux Enterprise Desktop 12 SP3 permissions Ignore
SUSE Linux Enterprise Desktop 12 SP4 permissions Ignore
SUSE Linux Enterprise Desktop 15 SP1 permissions Already fixed
SUSE Linux Enterprise Desktop 15 SP2 permissions Already fixed
SUSE Linux Enterprise Desktop 15 SP3 permissions Already fixed
SUSE Linux Enterprise Desktop 15 SP4 permissions Released
SUSE Linux Enterprise Desktop 15 SP5 permissions Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2 permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS permissions Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS permissions Affected
SUSE Linux Enterprise Micro 5.0 permissions Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP1 permissions Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP2 permissions Already fixed
SUSE Linux Enterprise Point of Sale 11 SP3 lxc Not affected
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT permissions Ignore
SUSE Linux Enterprise Real Time 15 SP2 permissions Already fixed
SUSE Linux Enterprise Real Time 15 SP3 permissions Already fixed
SUSE Linux Enterprise Real Time 15 SP4 permissions Affected
SUSE Linux Enterprise Server 11 SP1 lxc Not affected
SUSE Linux Enterprise Server 11 SP1-LTSS lxc Not affected
SUSE Linux Enterprise Server 11 SP3 lxc Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS lxc Unsupported
SUSE Linux Enterprise Server 11 SP3-LTSS lxc Not affected
SUSE Linux Enterprise Server 11 SP4 lxc Unsupported
SUSE Linux Enterprise Server 11 SP4-LTSS lxc Not affected
SUSE Linux Enterprise Server 12 SP2 permissions Ignore
SUSE Linux Enterprise Server 12 SP2-BCL permissions Ignore
SUSE Linux Enterprise Server 12 SP2-ESPOS permissions Ignore
SUSE Linux Enterprise Server 12 SP2-LTSS permissions Ignore
SUSE Linux Enterprise Server 12 SP3 permissions Ignore
SUSE Linux Enterprise Server 12 SP3-BCL permissions Ignore
SUSE Linux Enterprise Server 12 SP3-ESPOS permissions Ignore
SUSE Linux Enterprise Server 12 SP3-LTSS permissions Ignore
SUSE Linux Enterprise Server 12 SP4 permissions Ignore
SUSE Linux Enterprise Server 12 SP4-ESPOS permissions Ignore
SUSE Linux Enterprise Server 12 SP4-LTSS permissions Ignore
SUSE Linux Enterprise Server 15 SP1 permissions Already fixed
SUSE Linux Enterprise Server 15 SP1-BCL permissions Already fixed
SUSE Linux Enterprise Server 15 SP1-LTSS permissions Already fixed
SUSE Linux Enterprise Server 15 SP2 permissions Already fixed
SUSE Linux Enterprise Server 15 SP2-BCL permissions Already fixed
SUSE Linux Enterprise Server 15 SP2-LTSS permissions Already fixed
SUSE Linux Enterprise Server 15 SP3-BCL permissions Already fixed
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 permissions Ignore
SUSE Linux Enterprise Server for SAP Applications 11 SP3 lxc Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP4 lxc Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP2 permissions Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP3 permissions Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP4 permissions Ignore
SUSE Linux Enterprise Server for SAP Applications 15 SP1 permissions Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP2 permissions Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP3 permissions Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP4 permissions Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 permissions Affected
SUSE Linux Enterprise Software Development Kit 11 SP3 lxc Not affected
SUSE Linux Enterprise Software Development Kit 11 SP4 lxc Unsupported
SUSE Manager Proxy 4.0 permissions Already fixed
SUSE Manager Proxy 4.1 permissions Already fixed
SUSE Manager Proxy 4.2 permissions Already fixed
SUSE Manager Retail Branch Server 4.0 permissions Already fixed
SUSE Manager Retail Branch Server 4.1 permissions Already fixed
SUSE Manager Retail Branch Server 4.2 permissions Already fixed
SUSE Manager Server 4.0 permissions Already fixed
SUSE Manager Server 4.1 permissions Already fixed
SUSE Manager Server 4.2 permissions Already fixed
SUSE OpenStack Cloud 7 permissions Ignore
SUSE OpenStack Cloud 8 permissions Ignore
SUSE OpenStack Cloud 9 permissions Ignore
SUSE OpenStack Cloud Crowbar 8 permissions Ignore
SUSE OpenStack Cloud Crowbar 9 permissions Ignore
SUSE Package Hub 15 lxc Released
SUSE Package Hub 15 lxcfs Released
openSUSE Leap 15.3 permissions Already fixed
openSUSE Leap 15.4 permissions Affected
openSUSE Leap 15.5 permissions Affected
openSUSE Leap Micro 5.2 permissions Already fixed
openSUSE Leap Micro 5.3 permissions Affected
openSUSE Leap Micro 5.4 permissions Affected
openSUSE Leap Micro 5.5 permissions Affected

SUSE Timeline for this CVE

CVE page created: Tue Mar 13 18:30:20 2018
CVE page last modified: Sun Sep 28 13:31:35 2025