CVE-2018-20823: Input Validation
First published: Thu Apr 25 2019(Updated: )
The gyroscope on Xiaomi Mi 5s devices allows attackers to cause a denial of service (resonance and false data) via a 20.4 kHz audio signal, aka a MEMS ultrasound attack.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mi 5s Plus Firmware | ||
| Xiaomi Mi 5s |
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Reference Links
- https://hackaday.com/2018/07/17/freak-out-your-smartphone-with-ultrasound/
- https://medium.com/@juliodellaflora/ultrassom-pode-causar-anomalias-no-girosc%C3%B3pio-do-xiaomi-mi5s-plus-4050d718bc7f
- https://medium.com/%40juliodellaflora/ultrassom-pode-causar-anomalias-no-girosc%C3%B3pio-do-xiaomi-mi5s-plus-4050d718bc7f
Frequently Asked Questions
What is the severity of CVE-2018-20823?
CVE-2018-20823 has a high severity as it can lead to denial of service via a MEMS ultrasound attack on the gyroscope.
How do I fix CVE-2018-20823?
To mitigate CVE-2018-20823, it is recommended to avoid exposure to 20.4 kHz audio signals and implement software patches from Xiaomi.
What devices are affected by CVE-2018-20823?
CVE-2018-20823 specifically affects Xiaomi Mi 5s devices.
Can CVE-2018-20823 be triggered remotely?
Yes, CVE-2018-20823 can be triggered remotely using a 20.4 kHz audio signal.
What type of attack is CVE-2018-20823 classified as?
CVE-2018-20823 is classified as a denial of service attack.
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