Vulnerability CVE-2016-8660

Vulnerability Name:

CVE-2016-8660 (CCN-118154)

Assigned:

2016-10-14

Published:

2016-10-14

Updated:

2016-11-28

Summary:

The XFS subsystem in the Linux kernel through 4.8.2 allows local users to cause a denial of service (fdatasync failure and system hang) by using the vfs syscall group in the trinity program, related to a "page lock order bug in the XFS seek hole/data implementation."

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)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

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)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

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)

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)

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

Vulnerability Type:

CWE-19

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2016-8660

Source: CCN
Type: Linux Kernel GIT Repository
xfs: optimise away log forces on timestamp updates for fdatasync

Source: MLIST
Type: Mailing List
[oss-security] 20161013 CVE request: kernel - local DoS due to a page lock order bug in the XFS seek hole/data implementation

Source: BID
Type: UNKNOWN
93558

Source: CCN
Type: BID-93558
Linux Kernel CVE-2016-8660 Local Denial of Service Vulnerability

Source: CCN
Type: Red Hat Bugzilla Bug 1384851
(CVE-2016-8660) CVE-2016-8660 kernel: xfs: local DoS due to a page lock order bug in the XFS seek hole/data implementation

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1384851

Source: XF
Type: UNKNOWN
linux-kernel-cve20168660-dos(118154)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-8660

Vulnerable Configuration:

Configuration 1:

cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 4.8.2)

Configuration CCN 1:

cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.bionic:def:201686600000000	V	CVE-2016-8660 on Ubuntu 18.04 LTS (bionic) - medium.	2016-10-16
oval:com.ubuntu.artful:def:20168660000	V	CVE-2016-8660 on Ubuntu 17.10 (artful) - medium.	2016-10-16
oval:com.ubuntu.trusty:def:20168660000	V	CVE-2016-8660 on Ubuntu 14.04 LTS (trusty) - medium.	2016-10-16
oval:com.ubuntu.xenial:def:201686600000000	V	CVE-2016-8660 on Ubuntu 16.04 LTS (xenial) - medium.	2016-10-16
oval:com.ubuntu.bionic:def:20168660000	V	CVE-2016-8660 on Ubuntu 18.04 LTS (bionic) - medium.	2016-10-16
oval:com.ubuntu.xenial:def:20168660000	V	CVE-2016-8660 on Ubuntu 16.04 LTS (xenial) - medium.	2016-10-16
oval:com.ubuntu.disco:def:201686600000000	V	CVE-2016-8660 on Ubuntu 19.04 (disco) - medium.	2016-10-16
oval:com.ubuntu.cosmic:def:20168660000	V	CVE-2016-8660 on Ubuntu 18.10 (cosmic) - medium.	2016-10-16
oval:com.ubuntu.cosmic:def:201686600000000	V	CVE-2016-8660 on Ubuntu 18.10 (cosmic) - medium.	2016-10-16
oval:com.ubuntu.precise:def:20168660000	V	CVE-2016-8660 on Ubuntu 12.04 LTS (precise) - medium.	2016-10-16

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