Linux Kernel up to 4.4 emac_main.c arc_emac_tx/arc_emac_tx_clean race condition

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6.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 4.4. This affects the function arc_emac_tx/arc_emac_tx_clean of the file drivers/net/ethernet/arc/emac_main.c. The manipulation results in race condition. This vulnerability is known as CVE-2016-10906. Attacking locally is a requirement. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.4 (Operating System). It has been classified as critical. Affected is the function arc_emac_tx/arc_emac_tx_clean of the file drivers/net/ethernet/arc/emac_main.c. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in drivers/net/ethernet/arc/emac_main.c in the Linux kernel before 4.5. A use-after-free is caused by a race condition between the functions arc_emac_tx and arc_emac_tx_clean.

The weakness was published 08/19/2019 (Website). The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2016-10906 since 08/18/2019. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 247754 (Linux Distros Unpatched Vulnerability : CVE-2016-10906), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (247754). Similar entries are available at VDB-140231, VDB-140279 and VDB-140286. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
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: 247754
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2016-10906

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.5
Patch: git.kernel.org

Timelineinfo

08/18/2019 🔍
08/19/2019 +1 days 🔍
08/19/2019 +0 days 🔍
08/12/2025 +2185 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: K01993501
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-10906 (🔍)
GCVE (CVE): GCVE-0-2016-10906
GCVE (VulDB): GCVE-100-140280
See also: 🔍

Entryinfo

Created: 08/19/2019 08:21
Updated: 08/12/2025 02:42
Changes: 08/19/2019 08:21 (59), 07/30/2020 18:30 (2), 11/26/2023 13:15 (5), 11/26/2023 13:21 (1), 08/12/2025 02:42 (19)
Complete: 🔍
Cache ID: 216::103

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