CVE-2022-47549

Public Exploit

Description

An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) before 3.20 allows a physically proximate adversary to bypass signature verification and install malicious trusted applications via electromagnetic fault injections.

Category

6.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory linaro.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6g third party advisory
https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on_ARM_TrustZone_through_EM_faults_coredumps_and_UUID_confusion.pdf exploit technical description vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-47549?
CVE-2022-47549 has been scored as a medium severity vulnerability.
How to fix CVE-2022-47549?
To fix CVE-2022-47549, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-47549 being actively exploited in the wild?
It is possible that CVE-2022-47549 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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