Linux Kernel up to 5.4.16 drivers/spi/spi-dw.c dw_spi_irq/dw_spi_transfer_one input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.4.16. Affected is the function dw_spi_irq/dw_spi_transfer_one of the file drivers/spi/spi-dw.c. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2020-12769. Local access is required to approach this attack. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.4.16 (Operating System) and classified as critical. This issue affects the function dw_spi_irq/dw_spi_transfer_one of the file drivers/spi/spi-dw.c. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

An issue was discovered in the Linux kernel before 5.4.17. drivers/spi/spi-dw.c allows attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one, aka CID-19b61392c5a8.

The weakness was disclosed 05/09/2020 (Website). It is possible to read the advisory at cdn.kernel.org. The identification of this vulnerability is CVE-2020-12769 since 05/09/2020. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.4.17 eliminates this vulnerability.

The entries VDB-154969, VDB-154968 and VDB-154966 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.4.17

Timelineinfo

05/09/2020 🔍
05/09/2020 +0 days 🔍
05/10/2020 +1 days 🔍
10/16/2020 +159 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: cdn.kernel.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-12769 (🔍)
GCVE (CVE): GCVE-0-2020-12769
GCVE (VulDB): GCVE-100-154967
See also: 🔍

Entryinfo

Created: 05/10/2020 09:17
Updated: 10/16/2020 12:27
Changes: 05/10/2020 09:17 (43), 05/10/2020 09:22 (18), 10/16/2020 12:27 (1)
Complete: 🔍
Cache ID: 216::103

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