Linux Kernel up to 4.19.8 USB Device drivers/net/usb/hso.c hso_get_config_data ret out-of-bounds read

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CVSS Meta Temp Score
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6.0$0-$5k0.00

A vulnerability has been found in Linux Kernel up to 4.19.8 (Operating System) and classified as critical. Affected by this vulnerability is the function hso_get_config_data of the file drivers/net/usb/hso.c of the component USB Device Handler. The manipulation of the argument ret with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-125. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 12/12/2018. The weakness was published 03/21/2019 (Website). It is possible to read the advisory at lists.debian.org. This vulnerability is known as CVE-2018-19985 since 12/09/2018. Attacking locally is a requirement. Required for exploitation is a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/18/2020).

The vulnerability was handled as a non-public zero-day exploit for at least 36 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 121289 (openSUSE Security Update : the Linux Kernel (openSUSE-2019-65)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171998 (OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2019:0065-1)).

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

The vulnerability is also documented in the databases at SecurityFocus (BID 107890) and Tenable (121289). Similar entries are available at 63774, 82964, 107092 and 115786.

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VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.0

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.6
NVD Vector: 🔍

CVSSv2infoedit

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Exploitinginfoedit

Class: Information disclosure
CWE: CWE-125
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121289
Nessus Name: openSUSE Security Update : the Linux Kernel (openSUSE-2019-65)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

12/09/2018 🔍
12/12/2018 +3 days 🔍
01/17/2019 +36 days 🔍
01/22/2019 +5 days 🔍
03/21/2019 +58 days 🔍
03/21/2019 +0 days 🔍
04/03/2019 +13 days 🔍
05/18/2020 +411 days 🔍

Sourcesinfoedit

Vendor: https://www.kernel.org/

Advisory: lists.debian.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-19985 (🔍)
SecurityFocus: 107890 - Linux Kernel CVE-2019-11190 Local Security Bypass Vulnerability

See also: 🔍

Entryinfoedit

Created: 03/21/2019 11:05 PM
Updated: 05/18/2020 07:02 AM
Changes: (5) vulnerability_discoverydate advisory_url advisory_confirm_url source_securityfocus_date source_securityfocus_class
Complete: 🔍

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