CVE-2021-25500 : A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows a

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 03:15:07

Updated 2022-08-01 12:01:58

Source Samsung Mobile

View at NVD, CVE.org

Vulnerability category: Memory CorruptionInput validation

Products affected by CVE-2021-25500

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 10 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:P/A:N	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.2	HIGH	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N	0.8	5.8	Samsung Mobile
Attack Vector: Local Attack Complexity: High Privileges Required: High User Interaction: None Scope: Changed Confidentiality: High Integrity: High Availability: None
4.4	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N	0.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE-20 Improper Input Validation

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.

Assigned by: mobile.security@samsung.com (Secondary)
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

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