CVE-2021-25500 - Vulnerability Details - OpenCVE

Description

A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows attackers to overwrite TZASC allowing TEE compromise.

Published: 2021-11-05

Score: 7.2 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Samsung Mobile

Samsung Mobile Devices

affected

Version	Status	Constraints
`Select Q(10.0), R(11.0) devices with Exynos 980, 9820, 9830, 2100 chipset`	affected	< SMR Nov-2021 Release 1

Configuration 1 [-]

AND

OR	cpe:2.3:o:google:android:10.0:::::::*
	cpe:2.3:o:google:android:11.0:::::::*

OR	cpe:2.3:h:samsung:exynos_2100:-:::::::*
	cpe:2.3:h:samsung:exynos_980:-:::::::*
	cpe:2.3:h:samsung:exynos_9820:-:::::::*
	cpe:2.3:h:samsung:exynos_9830:-:::::::*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-12396	A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows attackers to overwrite TZASC allowing TEE compromise.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00021.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=11

History

No history.

Subscriptions

Google Android

Samsung Exynos 2100 Exynos 980 Exynos 9820 Exynos 9830

MITRE

Status: PUBLISHED

Assigner: Samsung Mobile

Published: 2021-11-05T02:03:21.000Z

Updated: 2024-08-03T20:03:05.679Z

Reserved: 2021-01-19T00:00:00.000Z

Link: CVE-2021-25500

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-11-05T03:15:07.323

Modified: 2024-11-21T05:55:07.210

Link: CVE-2021-25500

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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