Linux Kernel up to 5.2.8 USB Device drivers/usb/misc/yurex.c use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

A vulnerability has been found in Linux Kernel up to 5.2.8 (Operating System) and classified as critical. Affected by this vulnerability is an unknown functionality of the file drivers/usb/misc/yurex.c of the component USB Device Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel before 5.2.9, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver, aka CID-fc05481b2fca.

The weakness was presented 12/03/2019 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2019-19531 since 12/03/2019. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.2.9 eliminates this vulnerability.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.2.9
Patch: git.kernel.org

Timelineinfo

12/03/2019 🔍
12/03/2019 +0 days 🔍
12/04/2019 +1 days 🔍
03/07/2024 +1555 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: DLA 2068-1
Status: Not defined

CVE: CVE-2019-19531 (🔍)

Entryinfo

Created: 12/04/2019 09:59 AM
Updated: 03/07/2024 07:23 AM
Changes: 12/04/2019 09:59 AM (42), 12/04/2019 10:04 AM (18), 03/07/2024 07:23 AM (5)
Complete: 🔍
Cache ID: 3:096:40

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