Linux Kernel up to 4.11.7 Message Queue msnd_pinnacle.c intr out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 4.11.7. Affected by this issue is the function intr of the file sound/oss/msnd_pinnacle.c of the component Message Queue. Such manipulation leads to out-of-bounds. This vulnerability is traded as CVE-2017-9986. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.11.7 (Operating System) and classified as critical. Affected by this issue is the function intr of the file sound/oss/msnd_pinnacle.c of the component Message Queue. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 06/27/2017. The weakness was shared 06/28/2017 (Website). The advisory is shared for download at bugzilla.kernel.org. This vulnerability is handled as CVE-2017-9986 since 06/27/2017. The attack needs to be approached locally. The requirement for exploitation is a simple authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 246903 (Linux Distros Unpatched Vulnerability : CVE-2017-9986), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (246903) and SecurityFocus (BID 99336†). The entries VDB-102882 and VDB-102883 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 246903
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2017-9986

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/27/2017 🔍
06/27/2017 +0 days 🔍
06/28/2017 +1 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
08/10/2025 +2965 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.kernel.org
Researcher: Pengfei Wang
Status: Not defined

CVE: CVE-2017-9986 (🔍)
GCVE (CVE): GCVE-0-2017-9986
GCVE (VulDB): GCVE-100-102884
SecurityFocus: 99336 - Linux kernel CVE-2017-9986 Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/28/2017 16:32
Updated: 08/10/2025 17:03
Changes: 06/28/2017 16:32 (64), 10/21/2019 07:26 (3), 12/30/2020 07:07 (3), 08/10/2025 17:03 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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