Upstream information

CVE-2018-6954 at MITRE

Description

systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.2
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.8 7.1
Vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Access Vector Local Local
Access Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High None
SUSE Bugzilla entry: 1080919 [IN_PROGRESS]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 systemd Affected
OpenStack Cloud Magnum Orchestration 7.0 systemd Affected
SUSE Linux Enterprise Desktop 12 SP2 systemd Affected
SUSE Linux Enterprise Desktop 12 SP3 systemd Affected
SUSE Linux Enterprise SDK 12 SP2 systemd Affected
SUSE Linux Enterprise SDK 12 SP3 systemd Affected
SUSE Linux Enterprise Server 12 GA LTSS systemd Affected
SUSE Linux Enterprise Server 12 SP1 LTSS systemd Affected
SUSE Linux Enterprise Server 12 SP2 systemd Affected
SUSE Linux Enterprise Server 12 SP3 systemd Affected