VDB-106296 · CVE-2017-12146 · BID 100651

Linux Kernel up to 4.12.0 drivers/base/platform.c driver_override race condition

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in Linux Kernel up to 4.12.0 (Operating System). It has been classified as problematic. Affected is the function driver_override of the file drivers/base/platform.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:

The driver_override implementation in drivers/base/platform.c in the Linux kernel before 4.12.1 allows local users to gain privileges by leveraging a race condition between a read operation and a store operation that involve different overrides.

The bug was discovered 05/25/2017. The weakness was released 09/08/2017 as confirmed git commit (GIT Repository). The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2017-12146 since 08/01/2017. The attack needs to be approached locally. The successful exploitation needs a 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 106 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103365 (Debian DSA-3981-1 : linux - security update (BlueBorne) (Stack Clash)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176163 (Debian Security Update for Linux (DSA 3981-1)).

Upgrading to version 4.12.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103365) and SecurityFocus (BID 100651†).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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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: 🔍
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Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103365
Nessus Name: Debian DSA-3981-1 : linux - security update (BlueBorne) (Stack Clash)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3981-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Kernel 4.12.1
Patch: git.kernel.org

Timelineinfo

05/25/2017 🔍
05/25/2017 +0 days 🔍
08/01/2017 +68 days 🔍
09/08/2017 +38 days 🔍
09/08/2017 +0 days 🔍
09/09/2017 +1 days 🔍
09/20/2017 +11 days 🔍
09/21/2017 +1 days 🔍
12/28/2022 +1924 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 6265539776a0810b7ce6398c27866ddb9c6bd154
Researcher: Yonggang Guo
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12146 (🔍)
OVAL: 🔍

SecurityFocus: 100651

Entryinfo

Created: 09/09/2017 01:36 PM
Updated: 12/28/2022 09:16 AM
Changes: 09/09/2017 01:36 PM (75), 11/14/2019 09:13 AM (9), 01/11/2021 01:31 PM (5), 12/28/2022 09:16 AM (3)
Complete: 🔍
Cache ID: 44:B1C:40

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