Vulnerability CVE-2014-7970

Vulnerability Name:

CVE-2014-7970 (CCN-96921)

Assigned:

2014-10-08

Published:

2014-10-08

Updated:

2020-08-14

Summary:

The pivot_root implementation in fs/namespace.c in the Linux kernel through 3.17 does not properly interact with certain locations of a chroot directory, which allows local users to cause a denial of service (mount-tree loop) via . (dot) values in both arguments to the pivot_root system call.

CVSS v3 Severity:

5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
3.7 Low (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

1.0 Low (REDHAT CVSS v2 Vector: AV:L/AC:H/Au:S/C:N/I:N/A:P)
0.7 Low (REDHAT Temporal CVSS v2 Vector: AV:L/AC:H/Au:S/C:N/I:N/A:P/E:U/RL:OF/RC:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): High Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-400

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2014-7970

Source: SUSE
Type: Mailing List, Third Party Advisory
SUSE-SU-2015:0736

Source: CCN
Type: oss-security Mailing List, Wed, 8 Oct 2014 12:48:19 -0700
CVE-2014-7970: Linux VFS denial of service

Source: SECUNIA
Type: Broken Link
60174

Source: SECUNIA
Type: Broken Link
61142

Source: CCN
Type: IBM Security Bulletin 1021943
PowerKVM Kernel Vulnerabilities - Multiple CVEs

Source: CCN
Type: IBM Security Bulletin T1026731 (PowerKVM)
Vulnerabilities in the Linux kernel affect PowerKVM

Source: CCN
Type: IBM Security Bulletin 2011746 (QRadar Network Security)
IBM QRadar Network Security is affected by vulnerabilities in Linux kernel

Source: CCN
Type: The Linux Kernel Archives Web site
Linux Kernel

Source: MLIST
Type: Mailing List, Patch, Third Party Advisory
[oss-security] 20141008 CVE-2014-7970: Linux VFS denial of service

Source: BID
Type: Third Party Advisory, VDB Entry
70319

Source: CCN
Type: BID-70319
Linux Kernel VFS 'pivot_root()' Function Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1030991

Source: MLIST
Type: Exploit, Mailing List, Patch, Third Party Advisory
[linux-fsdevel] 20141008 [PATCH] mnt: Prevent pivot_root from creating a loop in the mount tree

Source: UBUNTU
Type: Third Party Advisory
USN-2419-1

Source: UBUNTU
Type: Third Party Advisory
USN-2420-1

Source: UBUNTU
Type: Third Party Advisory
USN-2513-1

Source: UBUNTU
Type: Third Party Advisory
USN-2514-1

Source: REDHAT
Type: Third Party Advisory
RHSA-2017:1842

Source: REDHAT
Type: Third Party Advisory
RHSA-2017:2077

Source: CCN
Type: Red Hat Bugzilla Bug 1151095
(CVE-2014-7970) CVE-2014-7970 Kernel: fs: VFS denial of service

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1151095

Source: XF
Type: Third Party Advisory, VDB Entry
linux-kernel-cve20147970-dos(96921)

Source: XF
Type: UNKNOWN
linux-kernel-cve20147970-dos(96921)

Source: CONFIRM
Type: Mailing List, Patch, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0d0826019e529f21c84687521d03f60cd241ca7d

Vulnerable Configuration:

Configuration 1:

cpe:/o:opensuse:suse_linux_enterprise_server:11.0:sp3:*:*:*:*:*:*

Configuration 2:

cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 3.17)

Configuration 3:

cpe:/o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*

OR cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*

Configuration RedHat 1:

cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

Configuration RedHat 2:

cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*

Configuration RedHat 3:

cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*

Configuration RedHat 4:

cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*

Configuration RedHat 5:

cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

Configuration RedHat 6:

cpe:/a:redhat:rhel_extras_rt:7:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:accelatech:bizsearch:3.2:-:*:*:*:linux_kernel:*:*

AND

cpe:/a:ibm:powerkvm:2.1:*:*:*:*:*:*:*

OR cpe:/a:ibm:powerkvm:3.1:*:*:*:*:*:*:*

OR cpe:/a:ibm:qradar_network_security:5.4:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:20147970	V	CVE-2014-7970	2022-08-07
oval:org.opensuse.security:def:32240	P	Security update for the Linux Kernel (Live Patch 41 for SLE 12 SP3) (Important)	2021-12-14
oval:org.opensuse.security:def:26181	P	Security update for mozilla-nss (Important)	2021-12-06
oval:org.opensuse.security:def:31716	P	Security update for mozilla-nss (Important)	2021-12-06
oval:org.opensuse.security:def:26139	P	Security update for libvirt (Moderate)	2021-10-04
oval:org.opensuse.security:def:31642	P	Security update for webkit2gtk3 (Important)	2021-06-17
oval:org.opensuse.security:def:36164	P	kernel-default-3.0.101-63.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:36428	P	kernel-docs-3.0.101-63.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:42571	P	kernel-default-3.0.101-63.1 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:31631	P	Security update for gstreamer-plugins-bad (Important)	2021-06-07
oval:org.opensuse.security:def:31630	P	Security update for polkit (Important)	2021-06-03
oval:org.opensuse.security:def:26055	P	Security update for hivex (Moderate)	2021-05-26
oval:org.opensuse.security:def:26053	P	Security update for libxml2 (Important)	2021-05-19
oval:org.opensuse.security:def:32084	P	Security update for gdm (Important)	2021-04-28
oval:org.opensuse.security:def:33088	P	Security update for MozillaFirefox (Important)	2021-03-01
oval:org.opensuse.security:def:25977	P	Security update for openssl-1_1 (Important)	2020-12-10
oval:org.opensuse.security:def:26753	P	libmysqlclient15-32bit on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:26431	P	Security update for tor (Moderate)	2020-12-01
oval:org.opensuse.security:def:26319	P	Security update for kde-cli-tools5 (Moderate)	2020-12-01
oval:org.opensuse.security:def:25917	P	Security update for mariadb (Important)	2020-12-01
oval:org.opensuse.security:def:26709	P	gmime on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:26392	P	Security update for MozillaThunderbird (Important)	2020-12-01
oval:org.opensuse.security:def:26262	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:25789	P	Security update for flash-player (Critical)	2020-12-01
oval:org.opensuse.security:def:32450	P	Security update for xen (Important)	2020-12-01
oval:org.opensuse.security:def:26695	P	fetchmail on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:26343	P	Security update for MozillaThunderbird (Important)	2020-12-01
oval:org.opensuse.security:def:31997	P	Security update for java-1_7_1-ibm (Important)	2020-12-01
oval:org.opensuse.security:def:27162	P	kernel-default on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25725	P	Security update for MozillaFirefox (Important)	2020-12-01
oval:org.opensuse.security:def:32406	P	Security update for wavpack (Moderate)	2020-12-01
oval:org.opensuse.security:def:26656	P	zoo on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:26290	P	Security update for ImageMagick (Moderate)	2020-12-01
oval:org.opensuse.security:def:31940	P	Recommended update for glibc (Moderate)	2020-12-01
oval:org.opensuse.security:def:27127	P	freetype2 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25714	P	Security update for libpng16 (Moderate)	2020-12-01
oval:org.opensuse.security:def:32384	P	Security update for tiff (Low)	2020-12-01
oval:org.opensuse.security:def:26607	P	libvorbis on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:31848	P	Security update for clamav (Moderate)	2020-12-01
oval:org.opensuse.security:def:27426	P	kernel-docs on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25989	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:26489	P	Security update for php7-imagick (Moderate)	2020-12-01
oval:org.opensuse.security:def:25713	P	Security update for the Linux Kernel (Important)	2020-12-01
oval:org.opensuse.security:def:32345	P	Security update for spice (Important)	2020-12-01
oval:org.opensuse.security:def:26554	P	ghostscript-fonts-other on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:27391	P	e2fsprogs-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:25978	P	Security update for tcpdump, libpcap (Moderate)	2020-12-01
oval:org.opensuse.security:def:26445	P	Security update for chromium (Important)	2020-12-01
oval:org.opensuse.security:def:32296	P	Security update for procmail (Moderate)	2020-12-01
oval:org.opensuse.security:def:26403	P	Security update for ffmpeg (Moderate)	2020-12-01
oval:org.opensuse.security:def:25998	P	Security update for libreoffice (Important)	2020-12-01
oval:org.opensuse.security:def:33127	P	kernel-default on GA media (Moderate)	2020-12-01
oval:com.redhat.rhsa:def:20171842	P	RHSA-2017:1842: kernel security, bug fix, and enhancement update (Important)	2017-08-01
oval:com.redhat.rhsa:def:20172077	P	RHSA-2017:2077: kernel-rt security, bug fix, and enhancement update (Important)	2017-08-01
oval:org.mitre.oval:def:28556	P	USN-2447-1 -- Linux kernel (Utopic HWE) vulnerabilities	2015-02-23
oval:org.mitre.oval:def:27960	P	USN-2447-2 -- Linux kernel (Utopic HWE) regression	2015-02-23
oval:org.mitre.oval:def:28608	P	USN-2448-2 -- Linux kernel regression	2015-02-23
oval:org.mitre.oval:def:28611	P	USN-2448-1 -- Linux kernel vulnerabilities	2015-02-23
oval:org.mitre.oval:def:28454	P	USN-2420-1 -- Linux kernel vulnerabilities	2015-01-26
oval:org.mitre.oval:def:28026	P	USN-2419-1 -- Linux kernel (Trusty HWE) vulnerabilities	2015-01-26
oval:com.ubuntu.xenial:def:20147970000	V	CVE-2014-7970 on Ubuntu 16.04 LTS (xenial) - medium.	2014-10-13
oval:com.ubuntu.xenial:def:201479700000000	V	CVE-2014-7970 on Ubuntu 16.04 LTS (xenial) - medium.	2014-10-13
oval:com.ubuntu.precise:def:20147970000	V	CVE-2014-7970 on Ubuntu 12.04 LTS (precise) - medium.	2014-10-13
oval:com.ubuntu.trusty:def:20147970000	V	CVE-2014-7970 on Ubuntu 14.04 LTS (trusty) - medium.	2014-10-13

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