Linux Kernel up to 5.11.8 Soundwire Device Driver sound/soc/qcom/sdm845.c buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability was found in Linux Kernel up to 5.11.8 (Operating System) and classified as critical. Affected by this issue is an unknown code of the file sound/soc/qcom/sdm845.c of the component Soundwire Device Driver Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was presented 03/21/2021. The advisory is available at lore.kernel.org. This vulnerability is handled as CVE-2021-28952. Technical details are known, but there is no available exploit.

Upgrading to version 5.12-rc4 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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: 6.6
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Partially

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 5.12-rc4
Patch: git.kernel.org

Timelineinfo

03/20/2021 🔍
03/21/2021 +1 days 🔍
03/21/2021 +0 days 🔍
04/03/2021 +13 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lore.kernel.org
Status: Confirmed

CVE: CVE-2021-28952 (🔍)

Entryinfo

Created: 03/21/2021 07:53
Updated: 04/03/2021 13:17
Changes: 03/21/2021 07:53 (42), 04/03/2021 13:12 (5), 04/03/2021 13:17 (18)
Complete: 🔍

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