CVE-2014-7970

2014-10-1300:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.0004 Low

EPSS

Percentile

9.3%

JSON

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.

Bugs

<https://launchpad.net/bugs/1383356>

Notes

Author	Note
jdstrand	android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support

OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchlinux< 3.2.0-77.112UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-40.69UNKNOWN
ubuntu14.10noarchlinux< 3.16.0-26.35UNKNOWN
ubuntu12.04noarchlinux-armadaxp< 3.2.0-1645.64UNKNOWN
ubuntu12.04noarchlinux-lts-trusty< 3.13.0-40.69~precise1UNKNOWN
ubuntu14.04noarchlinux-lts-utopic< 3.16.0-26.35~14.04.1UNKNOWN
ubuntu12.04noarchlinux-ti-omap4< 3.2.0-1460.80UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	12.04	noarch	linux	< 3.2.0-77.112	UNKNOWN
ubuntu	14.04	noarch	linux	< 3.13.0-40.69	UNKNOWN
ubuntu	14.10	noarch	linux	< 3.16.0-26.35	UNKNOWN
ubuntu	12.04	noarch	linux-armadaxp	< 3.2.0-1645.64	UNKNOWN
ubuntu	12.04	noarch	linux-lts-trusty	< 3.13.0-40.69~precise1	UNKNOWN
ubuntu	14.04	noarch	linux-lts-utopic	< 3.16.0-26.35~14.04.1	UNKNOWN
ubuntu	12.04	noarch	linux-ti-omap4	< 3.2.0-1460.80	UNKNOWN