CVE-2021-25500 — Improper Input Validation in Mobile Devices

CWE-20 — Improper Input Validation CWE-787 — Out-of-bounds Write3 documents3 sources

Severity

4.4MEDIUMNVD

CNA7.2

EPSS

0.0%

top 94.52%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Samsung Mobile Devices Google Android

Timeline

PublishedNov 5

Latest updateMay 24

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:NExploitability: 0.8 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5samsung_mobile/samsung_mobile_devicesSelect Q(10.0), R(11.0) devices with Exynos 980, 9820, 9830, 2100 chipset — SMR Nov-2021 Release 1

▶NVDgoogle/android10.0, 11.0+1

🔴Vulnerability Details

GHSA

GHSA-8p45-f6fm-g8jq: A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows attackers to overwrite TZASC allowing TEE compromise↗2022-05-24

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CVEList

CVE-2021-25500: A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows attackers to overwrite TZASC allowing TEE compromise↗2021-11-05

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