Linux Kernel up to 4.13.11 cx231xx-cards.c cx231xx_usb_probe null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 4.13.11. This affects the function cx231xx_usb_probe of the file drivers/media/usb/cx231xx/cx231xx-cards.c. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2017-16536. An attack has to be approached locally. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.13.11 (Operating System) and classified as critical. This issue affects the function cx231xx_usb_probe of the file drivers/media/usb/cx231xx/cx231xx-cards.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The cx231xx_usb_probe function in drivers/media/usb/cx231xx/cx231xx-cards.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted system calls.

The bug was discovered 09/21/2017. The weakness was shared 11/04/2017 (Website). It is possible to read the advisory at groups.google.com. The identification of this vulnerability is CVE-2017-16536 since 11/03/2017. Attacking locally is a requirement. A simple authentication is required for exploitation. 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 43 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104910 (EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1291)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Huawei Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276995 (Fedora Security Update for kernel (FEDORA-2017-31d7720d7e)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104910). The entries VDB-109128, VDB-109129, VDB-109130 and VDB-109131 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 6.6
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104910
Nessus Name: EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1291)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 862920
OpenVAS Name: SuSE Update for Linux Kernel openSUSE-SU-2017:3359-1 (Linux Kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

09/21/2017 🔍
11/03/2017 +43 days 🔍
11/03/2017 +0 days 🔍
11/04/2017 +1 days 🔍
11/04/2017 +0 days 🔍
11/08/2017 +4 days 🔍
12/01/2017 +23 days 🔍
01/06/2023 +1862 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3619-1
Status: Not defined

CVE: CVE-2017-16536 (🔍)
GCVE (CVE): GCVE-0-2017-16536
GCVE (VulDB): GCVE-100-109139
See also: 🔍

Entryinfo

Created: 11/04/2017 16:26
Updated: 01/06/2023 13:35
Changes: 11/04/2017 16:26 (76), 12/04/2019 15:31 (3), 01/06/2023 13:35 (4)
Complete: 🔍
Cache ID: 216:11C:103

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