Linux Kernel up to 4.5.2 USB Device Descriptor gtco.c gtco_probe null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel up to 4.5.2. This vulnerability affects the function gtco_probe of the file drivers/input/tablet/gtco.c of the component USB Device Descriptor Handler. The manipulation leads to null pointer dereference. This vulnerability is documented as CVE-2016-2187. The attack needs to be performed locally. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.5.2 (Operating System). It has been rated as critical. This issue affects the function gtco_probe of the file drivers/input/tablet/gtco.c of the component USB Device Descriptor Handler. 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 gtco_probe function in drivers/input/tablet/gtco.c in the Linux kernel through 4.5.2 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor.

The weakness was released 05/02/2016 by Ralf Spenneberg with RCE Security (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2016-2187 since 01/29/2016. An attack has to be approached locally. A simple authentication is required for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 90330 (Fedora 24 : kernel-4.5.0-302.fc24 (2016-81fd1b03aa)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196488 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2989-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (90330) and SecurityFocus (BID 85425†). Entries connected to this vulnerability are available at VDB-81386, VDB-83140, VDB-83144 and VDB-83145. 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: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 8.4
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.6
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 90330
Nessus Name: Fedora 24 : kernel-4.5.0-302.fc24 (2016-81fd1b03aa)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 52528
OpenVAS Name: Fedora Update for kernel FEDORA-2016-81
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

01/29/2016 🔍
03/21/2016 +52 days 🔍
04/02/2016 +12 days 🔍
04/05/2016 +3 days 🔍
05/02/2016 +27 days 🔍
05/02/2016 +0 days 🔍
05/03/2016 +1 days 🔍
07/27/2022 +2276 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2016-81fd1b03aa
Researcher: Ralf Spenneberg
Organization: RCE Security
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-2187 (🔍)
GCVE (CVE): GCVE-0-2016-2187
GCVE (VulDB): GCVE-100-83141

OVAL: 🔍

SecurityFocus: 85425 - Linux Kernel 'USB Device Descriptor' Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 05/03/2016 11:25
Updated: 07/27/2022 19:01
Changes: 05/03/2016 11:25 (65), 11/07/2018 16:33 (18), 07/27/2022 18:53 (4), 07/27/2022 19:01 (1)
Complete: 🔍
Cache ID: 216::103

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