Linux Kernel up to 4.13.11 USB Device dib0700_devices.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, was found in Linux Kernel up to 4.13.11 (Operating System). This affects an unknown code block of the file drivers/media/usb/dvb-usb/dib0700_devices.c of the component USB Device Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 11/02/2017. The weakness was released 11/07/2017 by Andrey Konovalov (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2017-16646 since 11/07/2017. Attacking locally is a requirement. The requirement for exploitation is a authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105364 (openSUSE Security Update : the Linux Kernel (openSUSE-2017-1391) (Dirty COW)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276998 (Fedora Security Update for kernel (FEDORA-2017-905bb449bc)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105364). Entries connected to this vulnerability are available at 109131, 109189, 109190 and 109192.






  • open-source

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 6.6
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Class: Null pointer dereference
CWE: CWE-476 / CWE-404
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 105364
Nessus Name: openSUSE Security Update : the Linux Kernel (openSUSE-2017-1391) (Dirty COW)
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Nessus Risk: 🔍
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OpenVAS ID: 862920
OpenVAS Name: SuSE Update for Linux Kernel openSUSE-SU-2017:3359-1 (Linux Kernel)
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

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11/02/2017 🔍
11/07/2017 +5 days 🔍
11/07/2017 +0 days 🔍
11/07/2017 +0 days 🔍
11/08/2017 +1 days 🔍
11/15/2017 +7 days 🔍
12/18/2017 +33 days 🔍
12/19/2017 +1 days 🔍
01/06/2023 +1844 days 🔍



Advisory: USN-3617-1
Researcher: Andrey Konovalov
Status: Not defined

CVE: CVE-2017-16646 (🔍)
SecurityFocus: 101846 - Linux Kernel 'drivers/media/usb/dvb-usb/dib0700_devices.c' Local Denial of Service Vulnerability

See also: 🔍


Created: 11/08/2017 07:43 AM
Updated: 01/06/2023 03:32 PM
Changes: 11/08/2017 07:43 AM (77), 12/05/2019 06:05 AM (7), 01/06/2023 03:32 PM (4)
Complete: 🔍


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