Vulnerability CVE-2017-9986

Vulnerability Name:

CVE-2017-9986 (CCN-127766)

Assigned:

2017-06-27

Published:

2017-06-27

Updated:

2017-07-01

Summary:

The intr function in sound/oss/msnd_pinnacle.c in the Linux kernel through 4.11.7 allows local users to cause a denial of service (over-boundary access) or possibly have unspecified other impact by changing the value of a message queue head pointer between two kernel reads of that value, aka a "double fetch" vulnerability.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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): High Integrity (I): High 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:

7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete 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-125

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2017-9986

Source: BID
Type: UNKNOWN
99336

Source: CCN
Type: BID-99336
Linux kernel CVE-2017-9986 Local Denial of Service Vulnerability

Source: CCN
Type: Kernel.org Bugzilla Bug 196135
Double fetch problem in Linux-4.10.1/sound/oss/msnd_pinnacle.c

Source: MISC
Type: Issue Tracking
https://bugzilla.kernel.org/show_bug.cgi?id=196135

Source: XF
Type: UNKNOWN
linux-kernel-cve20179986-dos(127766)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-9986

Vulnerable Configuration:

Configuration 1:

cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 4.11.7)

Configuration CCN 1:

cpe:/o:linux:linux_kernel:4.11:-:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:201799860000000	V	CVE-2017-9986 on Ubuntu 16.04 LTS (xenial) - low.	2017-06-28
oval:com.ubuntu.artful:def:20179986000	V	CVE-2017-9986 on Ubuntu 17.10 (artful) - low.	2017-06-28
oval:com.ubuntu.xenial:def:20179986000	V	CVE-2017-9986 on Ubuntu 16.04 LTS (xenial) - low.	2017-06-28
oval:com.ubuntu.disco:def:201799860000000	V	CVE-2017-9986 on Ubuntu 19.04 (disco) - low.	2017-06-28
oval:com.ubuntu.bionic:def:20179986000	V	CVE-2017-9986 on Ubuntu 18.04 LTS (bionic) - low.	2017-06-28
oval:com.ubuntu.cosmic:def:201799860000000	V	CVE-2017-9986 on Ubuntu 18.10 (cosmic) - low.	2017-06-28
oval:com.ubuntu.cosmic:def:20179986000	V	CVE-2017-9986 on Ubuntu 18.10 (cosmic) - low.	2017-06-28
oval:com.ubuntu.bionic:def:201799860000000	V	CVE-2017-9986 on Ubuntu 18.04 LTS (bionic) - low.	2017-06-28
oval:com.ubuntu.trusty:def:20179986000	V	CVE-2017-9986 on Ubuntu 14.04 LTS (trusty) - low.	2017-06-28

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