VDB-100477 · CVE-2017-8071 · BID 97991

Linux Kernel up to 4.9.8 USB HID drivers/hid/hid-cp2112.c denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.9.8. This vulnerability affects unknown code of the file drivers/hid/hid-cp2112.c of the component USB HID Handler. This manipulation causes denial of service. This vulnerability is tracked as CVE-2017-8071. The attack is restricted to local execution. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 4.9.8 (Operating System). Affected by this vulnerability is some unknown processing of the file drivers/hid/hid-cp2112.c of the component USB HID Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

drivers/hid/hid-cp2112.c in the Linux kernel 4.9.x before 4.9.9 uses a spinlock without considering that sleeping is possible in a USB HID request callback, which allows local users to cause a denial of service (deadlock) via unspecified vectors.

The bug was discovered 04/16/2017. The weakness was disclosed 04/23/2017 (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2017-8071 since 04/23/2017. An attack has to be approached locally. Required for exploitation is a single 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 commercial vulnerability scanner Qualys is able to test this issue with plugin 351446 (Amazon Linux Security Advisory for kernel: ALAC2012-2018-012).

Upgrading to version 4.9.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97991†). The entries VDB-100467, VDB-100468, VDB-100470 and VDB-100471 are pretty similar. 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: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.9
Patch: git.kernel.org

Timelineinfo

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 🔍
08/25/2024 +2681 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 7a7b5df84b6b4e5d599c7289526eed96541a0654
Researcher: Johan Hovold
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8071 (🔍)
GCVE (CVE): GCVE-0-2017-8071
GCVE (VulDB): GCVE-100-100477
SecurityFocus: 97991 - Linux Kernel 'drivers/hid/hid-cp2112.c' Local Denial of Service Vulnerability
OSVDB: - CVE-2017-8071 - Linux - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 04/24/2017 00:06
Updated: 08/25/2024 22:12
Changes: 04/24/2017 00:06 (65), 09/19/2020 20:17 (4), 12/21/2020 12:44 (2), 12/02/2022 08:21 (4), 08/25/2024 22:12 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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