CVE-2021-44149 — Optee-os vulnerability

2 documents2 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 79.45%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Linaro Op-teeDebian Optee-os
Timeline
PublishedDec 7

Description

An issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0. The OPTEE-OS CSU driver for NXP i.MX6UL SoC devices lacks security access configuration for wakeup-related registers, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write operations on Secure World memory. This involves a v cycle.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶NVDlinaro/op-tee3.15.0

📋Vendor Advisories

1
Debian
CVE-2021-44149: optee-os - An issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0. Th...↗2021
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