Upstream information

CVE-2018-13405 at MITRE

Description

The inode_init_owner function in fs/inode.c in the Linux kernel through 4.17.4 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  SUSE
Base Score 4.4
Vector AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
SUSE Bugzilla entry: 1100416 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE CaaS Platform ALL
  • kernel-default >= 4.4.140-94.42.1
  • kernel-default-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debugsource >= 4.4.140-94.42.1
SUSE Linux Enterprise Build System Kit 12 SP3
  • kernel-zfcpdump >= 4.4.140-94.42.1
  • kernel-zfcpdump-debuginfo >= 4.4.140-94.42.1
  • kernel-zfcpdump-debugsource >= 4.4.140-94.42.1
SUSE Linux Enterprise Desktop 12 SP3
  • kernel-default >= 4.4.140-94.42.1
  • kernel-default-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debugsource >= 4.4.140-94.42.1
  • kernel-default-devel >= 4.4.140-94.42.1
  • kernel-default-extra >= 4.4.140-94.42.1
  • kernel-default-extra-debuginfo >= 4.4.140-94.42.1
  • kernel-devel >= 4.4.140-94.42.1
  • kernel-macros >= 4.4.140-94.42.1
  • kernel-source >= 4.4.140-94.42.1
  • kernel-syms >= 4.4.140-94.42.1
SUSE Linux Enterprise High Availability 12 SP3
  • cluster-md-kmp-default >= 4.4.140-94.42.1
  • cluster-md-kmp-default-debuginfo >= 4.4.140-94.42.1
  • dlm-kmp-default >= 4.4.140-94.42.1
  • dlm-kmp-default-debuginfo >= 4.4.140-94.42.1
  • gfs2-kmp-default >= 4.4.140-94.42.1
  • gfs2-kmp-default-debuginfo >= 4.4.140-94.42.1
  • kernel-default >= 4.4.140-94.42.1
  • kernel-default-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debugsource >= 4.4.140-94.42.1
  • ocfs2-kmp-default >= 4.4.140-94.42.1
  • ocfs2-kmp-default-debuginfo >= 4.4.140-94.42.1
SUSE Linux Enterprise High Availability 15
  • cluster-md-kmp-default >= 4.12.14-25.3.1
  • cluster-md-kmp-default-debuginfo >= 4.12.14-25.3.1
  • dlm-kmp-default >= 4.12.14-25.3.1
  • dlm-kmp-default-debuginfo >= 4.12.14-25.3.1
  • gfs2-kmp-default >= 4.12.14-25.3.1
  • gfs2-kmp-default-debuginfo >= 4.12.14-25.3.1
  • kernel-default >= 4.12.14-25.3.1
  • kernel-default-debuginfo >= 4.12.14-25.3.1
  • kernel-default-debugsource >= 4.12.14-25.3.1
  • ocfs2-kmp-default >= 4.12.14-25.3.1
  • ocfs2-kmp-default-debuginfo >= 4.12.14-25.3.1
SUSE Linux Enterprise Live Patching 12 SP3
  • kgraft-patch-4_4_140-94_42-default >= 1-4.3.1
  • kgraft-patch-4_4_140-94_42-default-debuginfo >= 1-4.3.1
  • kgraft-patch-SLE12-SP3_Update_15 >= 1-4.3.1
SUSE Linux Enterprise Module for Basesystem 15
  • kernel-default >= 4.12.14-25.3.1
  • kernel-default-debuginfo >= 4.12.14-25.3.1
  • kernel-default-debugsource >= 4.12.14-25.3.1
  • kernel-default-devel >= 4.12.14-25.3.1
  • kernel-default-devel-debuginfo >= 4.12.14-25.3.1
  • kernel-default-man >= 4.12.14-25.3.1
  • kernel-devel >= 4.12.14-25.3.1
  • kernel-macros >= 4.12.14-25.3.1
  • kernel-source >= 4.12.14-25.3.1
  • kernel-zfcpdump >= 4.12.14-25.3.1
  • kernel-zfcpdump-debuginfo >= 4.12.14-25.3.1
  • kernel-zfcpdump-debugsource >= 4.12.14-25.3.1
SUSE Linux Enterprise Module for Development Tools 15
  • kernel-docs >= 4.12.14-25.3.1
  • kernel-obs-build >= 4.12.14-25.3.1
  • kernel-obs-build-debugsource >= 4.12.14-25.3.1
  • kernel-source >= 4.12.14-25.3.1
  • kernel-syms >= 4.12.14-25.3.1
  • kernel-vanilla >= 4.12.14-25.3.1
  • kernel-vanilla-base >= 4.12.14-25.3.1
  • kernel-vanilla-base-debuginfo >= 4.12.14-25.3.1
  • kernel-vanilla-debuginfo >= 4.12.14-25.3.1
  • kernel-vanilla-debugsource >= 4.12.14-25.3.1
SUSE Linux Enterprise Module for Legacy Software 15
  • kernel-default >= 4.12.14-25.3.1
  • kernel-default-debuginfo >= 4.12.14-25.3.1
  • kernel-default-debugsource >= 4.12.14-25.3.1
  • reiserfs-kmp-default >= 4.12.14-25.3.1
  • reiserfs-kmp-default-debuginfo >= 4.12.14-25.3.1
SUSE Linux Enterprise Server 12 SP3
  • kernel-default >= 4.4.140-94.42.1
  • kernel-default-base >= 4.4.140-94.42.1
  • kernel-default-base-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debugsource >= 4.4.140-94.42.1
  • kernel-default-devel >= 4.4.140-94.42.1
  • kernel-default-man >= 4.4.140-94.42.1
  • kernel-devel >= 4.4.140-94.42.1
  • kernel-macros >= 4.4.140-94.42.1
  • kernel-source >= 4.4.140-94.42.1
  • kernel-syms >= 4.4.140-94.42.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • kernel-default >= 4.4.140-94.42.1
  • kernel-default-base >= 4.4.140-94.42.1
  • kernel-default-base-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debugsource >= 4.4.140-94.42.1
  • kernel-default-devel >= 4.4.140-94.42.1
  • kernel-default-man >= 4.4.140-94.42.1
  • kernel-devel >= 4.4.140-94.42.1
  • kernel-macros >= 4.4.140-94.42.1
  • kernel-source >= 4.4.140-94.42.1
  • kernel-syms >= 4.4.140-94.42.1
SUSE Linux Enterprise Software Development Kit 12 SP3
  • kernel-docs >= 4.4.140-94.42.1
  • kernel-obs-build >= 4.4.140-94.42.1
  • kernel-obs-build-debugsource >= 4.4.140-94.42.1
SUSE Linux Enterprise Workstation Extension 12 SP3
  • kernel-default >= 4.4.140-94.42.1
  • kernel-default-debuginfo >= 4.4.140-94.42.1
  • kernel-default-debugsource >= 4.4.140-94.42.1
  • kernel-default-extra >= 4.4.140-94.42.1
  • kernel-default-extra-debuginfo >= 4.4.140-94.42.1


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 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 GA kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 GA kernel-source Affected
SUSE Linux Enterprise Server 11 SP4 kernel-source Affected
SUSE Linux Enterprise Server 12 SP3 kernel-source Affected