Linux Kernel up to 4.9.x/4.10.11 cxusb.c memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in Linux Kernel up to 4.9.x/4.10.11 (Operating System). This issue affects an unknown code block of the file drivers/media/usb/dvb-usb/cxusb.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The bug was discovered 04/16/2017. The weakness was shared 04/23/2017 (Website). The advisory is shared at The identification of this vulnerability is CVE-2017-8063 since 04/23/2017. An attack has to be approached locally. The requirement for exploitation is a simple authentication. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100668 (Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3314-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196809 (Ubuntu Security Notification for Linux, Linux-raspi2 Vulnerabilities (USN-3314-1)).

Upgrading to version 4.9.x 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 (100668). The entries 100271, 100470, 100473 and 100633 are related to this item.






  • open-source

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 7.8
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍


Nessus ID: 100668
Nessus Name: Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3314-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
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OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for linux USN-3314-1
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Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: Kernel 4.9.x


04/16/2017 🔍
04/23/2017 +7 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
04/23/2017 +0 days 🔍
06/07/2017 +45 days 🔍
06/07/2017 +0 days 🔍
12/02/2022 +2004 days 🔍



Advisory: USN-3314-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8063 (🔍)
SecurityFocus: 97974 - Linux Kernel CVE-2017-8063 Local Denial of Service Vulnerability
OSVDB: - CVE-2017-8063 - Linux - Denial of Service Issue

See also: 🔍


Created: 04/24/2017 12:06 AM
Updated: 12/02/2022 07:59 AM
Changes: 04/24/2017 12:06 AM (85), 12/02/2022 07:54 AM (5), 12/02/2022 07:59 AM (1)
Complete: 🔍


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