Linux Kernel up to 4.13.11 usbtest.c get_endpoints 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 was found in Linux Kernel up to 4.13.11. It has been classified as critical. This issue affects the function get_endpoints of the file drivers/usb/misc/usbtest.c. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2017-16532. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 4.13.11 (Operating System). Affected by this vulnerability is the function get_endpoints of the file drivers/usb/misc/usbtest.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The get_endpoints function in drivers/usb/misc/usbtest.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 09/29/2017. The weakness was published 11/04/2017 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2017-16532 since 11/03/2017. Attacking locally is a requirement. The requirement for exploitation is a single 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 35 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104536 (Fedora 26 : kernel (2017-31d7720d7e)), 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 197104 (Ubuntu Security Notification for Linux, Linux-aws, Linux-kvm, Linux-raspi2, Linux-snapdragon Vulnerabilities (USN-3619-1)).

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

The vulnerability is also documented in the vulnerability database at Tenable (104536). Similar entries are available at VDB-109141 and VDB-112683. Be aware that VulDB is the high quality source for vulnerability data.

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: 🔍
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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: 104536
Nessus Name: Fedora 26 : kernel (2017-31d7720d7e)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 855273
OpenVAS Name: Fedora Update for kernel FEDORA-2017-08a350c878
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

09/29/2017 🔍
11/03/2017 +35 days 🔍
11/03/2017 +0 days 🔍
11/04/2017 +1 days 🔍
11/04/2017 +0 days 🔍
11/14/2017 +10 days 🔍
11/14/2017 +0 days 🔍
07/17/2024 +2437 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2017-31d7720d7e
Status: Not defined

CVE: CVE-2017-16532 (🔍)
GCVE (CVE): GCVE-0-2017-16532
GCVE (VulDB): GCVE-100-109135
See also: 🔍

Entryinfo

Created: 11/04/2017 16:26
Updated: 07/17/2024 18:20
Changes: 11/04/2017 16:26 (75), 12/04/2019 15:16 (4), 01/06/2023 12:22 (5), 01/06/2023 12:29 (1), 01/06/2023 12:36 (1), 07/17/2024 18:20 (15)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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