Upstream information

CVE-2014-5045 at MITRE

Description

The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.

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 6.2
Vector AV:L/AC:H/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity High
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

Note from the SUSE Security Team

This issue only affects Linux kernel 3.12 and later, so only the SUSE Linux Enterprise 12 codebase would be affected. SUSE Linux Enterprise 12 was fixed before shipment.

SUSE Bugzilla entry: 889060 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 12
  • kernel-default >= 3.12.28-4.6
  • kernel-default-devel >= 3.12.28-4.6
  • kernel-default-extra >= 3.12.28-4.6
  • kernel-devel >= 3.12.28-4.6
  • kernel-macros >= 3.12.28-4.6
  • kernel-source >= 3.12.28-4.6
  • kernel-syms >= 3.12.28-4.6
  • kernel-xen >= 3.12.28-4.6
  • kernel-xen-devel >= 3.12.28-4.6
Patchnames:
SUSE Linux Enterprise Desktop 12 GA kernel-default
SUSE Linux Enterprise Desktop 12 SP1
  • kernel-default >= 3.12.49-11.1
  • kernel-default-devel >= 3.12.49-11.1
  • kernel-default-extra >= 3.12.49-11.1
  • kernel-devel >= 3.12.49-11.1
  • kernel-macros >= 3.12.49-11.1
  • kernel-source >= 3.12.49-11.1
  • kernel-syms >= 3.12.49-11.1
  • kernel-xen >= 3.12.49-11.1
  • kernel-xen-devel >= 3.12.49-11.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP1 GA kernel-default
SUSE Linux Enterprise Server 12
  • kernel-default >= 3.12.28-4.6
  • kernel-default-base >= 3.12.28-4.6
  • kernel-default-devel >= 3.12.28-4.6
  • kernel-default-man >= 3.12.28-4.6
  • kernel-devel >= 3.12.28-4.6
  • kernel-macros >= 3.12.28-4.6
  • kernel-source >= 3.12.28-4.6
  • kernel-syms >= 3.12.28-4.6
  • kernel-xen >= 3.12.28-4.6
  • kernel-xen-base >= 3.12.28-4.6
  • kernel-xen-devel >= 3.12.28-4.6
Patchnames:
SUSE Linux Enterprise Server 12 GA kernel-default
SUSE Linux Enterprise Server 12 SP1
  • kernel-default >= 3.12.49-11.1
  • kernel-default-base >= 3.12.49-11.1
  • kernel-default-devel >= 3.12.49-11.1
  • kernel-default-man >= 3.12.49-11.1
  • kernel-devel >= 3.12.49-11.1
  • kernel-macros >= 3.12.49-11.1
  • kernel-source >= 3.12.49-11.1
  • kernel-syms >= 3.12.49-11.1
  • kernel-xen >= 3.12.49-11.1
  • kernel-xen-base >= 3.12.49-11.1
  • kernel-xen-devel >= 3.12.49-11.1
Patchnames:
SUSE Linux Enterprise Server 12 SP1 GA kernel-default
SUSE Linux Enterprise Software Development Kit 12
  • kernel-docs >= 3.12.28-4.6
  • kernel-obs-build >= 3.12.28-4.3
  • kernel-zfcpdump >= 3.12.28-4.2
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 GA kernel-docs
SUSE Linux Enterprise Software Development Kit 12 SP1
  • kernel-docs >= 3.12.49-11.1
  • kernel-obs-build >= 3.12.49-11.2
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP1 GA kernel-docs
SUSE Linux Enterprise Workstation Extension 12
  • kernel-default-extra >= 3.12.28-4.6
Patchnames:
SUSE Linux Enterprise Workstation Extension 12 GA kernel-default-extra
SUSE Linux Enterprise Workstation Extension 12 SP1
  • kernel-default-extra >= 3.12.49-11.1
Patchnames:
SUSE Linux Enterprise Workstation Extension 12 SP1 GA kernel-default-extra