CVE-2016-4581

MEDIUM

Linux Kernel < 4.5.3 - Denial of Service via Mount Propagation Tree Traversal

Title source: llm

Description

fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.

References (22)

Core 22

Core References

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3006-1

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3004-1

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/90607

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3001-1

Third Party Advisory x_refsource_confirm

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3005-1

Vendor Advisory x_refsource_confirm

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4

Vendor Advisory vendor-advisory x_refsource_redhat

http://rhn.redhat.com/errata/RHSA-2016-2584.html

Vendor Advisory vendor-advisory x_refsource_redhat

http://rhn.redhat.com/errata/RHSA-2016-2574.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3000-1

Issue Tracking, Third Party Advisory, VDB Entry x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=1333712

Third Party Advisory vendor-advisory x_refsource_debian

http://www.debian.org/security/2016/dsa-3607

Vendor Advisory x_refsource_confirm

https://github.com/torvalds/linux/commit/5ec0811d30378ae104f250bfc9b3640242d81e3f

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3002-1

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-2989-1

Patch x_refsource_confirm

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5ec0811d30378ae104f250bfc9b3640242d81e3f

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3007-1

Mailing List mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2016/05/11/2

Vendor Advisory x_refsource_confirm

http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-3003-1

Third Party Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-2998-1

Scores

CVSS v3 5.5

EPSS 0.0055

EPSS Percentile 42.5%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published

Products (6)

canonical/ubuntu_linux 12.04

canonical/ubuntu_linux 14.04

canonical/ubuntu_linux 15.10

canonical/ubuntu_linux 16.04

linux/linux_kernel < 4.5.3

oracle/linux 6

Published May 23, 2016

Tracked Since Feb 18, 2026