# What is CVE-2020-0022?

> CVE-2020-0022 is a high-severity flaw (CVSS 8.8) in Android from Google, published on 13 February 2020. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 6.1%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2020-0022

## At a glance

- **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle.
- **Precursor Intelligence risk score:** 51 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes.
- **Severity:** High (CVSS 8.8 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 6.1% (latest exploit-likelihood forecast)
- **Published:** 13 February 2020
- **Record last updated:** 1 August 2024
- **Main product:** Android from Google
- **Affected products:** 43

## What is CVE-2020-0022? In plain terms

An attacker has to be on the same local network without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.

### The official description

In reassemble_and_dispatch of packet_fragmenter.cc, there is possible out of bounds write due to an incorrect bounds calculation. This could lead to remote code execution over Bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-143894715

### What kind of flaw is it?

- CWE-682: Incorrect Calculation

### How an attack on it works

- Where an attacker can be: On the same local network
- How hard it is to pull off: Easy: no special conditions
- Login needed first: No login needed
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read data, change data and take it offline

Severity vector: `CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Is CVE-2020-0022 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 6.1%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 6.1%, 6.1%, 6.1%, 6.1%, 6.1%, 6.1%, 6.1%.

### Timeline

- 13 February 2020: Published
- 1 August 2024: Record last updated

### How Precursor Intelligence ranks it

CVE-2020-0022 scores **51 out of 100 (Medium)**, with the action "Plan remediation".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2020-0022?

The published record lists 43 products. Versions are as published: "before 9.1.0.291(c185e3r4p1)" means every version up to, but not including, 9.1.0.291(c185e3r4p1).

- [Android](https://www.precursorintelligence.com/product/google/android) by [Google](https://www.precursorintelligence.com/vendors/google) (Operating system): 8.0, 8.1, 9.0, 10.0
- [Honor 8a](https://www.precursorintelligence.com/product/huawei/honor_8a) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Honor 8a Firmware](https://www.precursorintelligence.com/product/huawei/honor_8a_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 9.1.0.291(c185e3r4p1)
- [Honor 8x](https://www.precursorintelligence.com/product/huawei/honor_8x) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Honor 8x Firmware](https://www.precursorintelligence.com/product/huawei/honor_8x_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.183(c185e2r6p1)
- [Honor View 20](https://www.precursorintelligence.com/product/huawei/honor_view_20) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Honor View 20 Firmware](https://www.precursorintelligence.com/product/huawei/honor_view_20_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.195(c636e3r4p3)
- [Mate 20](https://www.precursorintelligence.com/product/huawei/mate_20) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Mate 20 Firmware](https://www.precursorintelligence.com/product/huawei/mate_20_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.195(c00e74r3p8)
- [Mate 20 Pro](https://www.precursorintelligence.com/product/huawei/mate_20_pro) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Mate 20 Pro Firmware](https://www.precursorintelligence.com/product/huawei/mate_20_pro_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.196(c185e7r2p4)
- [Mate 20 X](https://www.precursorintelligence.com/product/huawei/mate_20_x) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Mate 20 X Firmware](https://www.precursorintelligence.com/product/huawei/mate_20_x_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.195(c00e74r2p8)
- [Mate 30](https://www.precursorintelligence.com/product/huawei/mate_30) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Mate 30 5g](https://www.precursorintelligence.com/product/huawei/mate_30_5g) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Mate 30 5g Firmware](https://www.precursorintelligence.com/product/huawei/mate_30_5g_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.203(c00e202r7p2)
- [Mate 30 Firmware](https://www.precursorintelligence.com/product/huawei/mate_30_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.203(c00e202r7p2)
- [Mate 30 Pro](https://www.precursorintelligence.com/product/huawei/mate_30_pro) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Mate 30 Pro 5g](https://www.precursorintelligence.com/product/huawei/mate_30_pro_5g) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Mate 30 Pro 5g Firmware](https://www.precursorintelligence.com/product/huawei/mate_30_pro_5g_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.203(c00e202r7p2)
- [Mate 30 Pro Firmware](https://www.precursorintelligence.com/product/huawei/mate_30_pro_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.203(c00e202r7p2)
- [Nova 3](https://www.precursorintelligence.com/product/huawei/nova_3) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Nova 3 Firmware](https://www.precursorintelligence.com/product/huawei/nova_3_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 9.1.0.338(c00e333r1p1t8)
- [Nova Lite 3](https://www.precursorintelligence.com/product/huawei/nova_lite_3) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Nova Lite 3 Firmware](https://www.precursorintelligence.com/product/huawei/nova_lite_3_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 9.1.0.322(c635e8r2p2)
- [P Smart](https://www.precursorintelligence.com/product/huawei/p_smart) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [P Smart 2019](https://www.precursorintelligence.com/product/huawei/p_smart_2019) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [P Smart 2019 Firmware](https://www.precursorintelligence.com/product/huawei/p_smart_2019_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.180(c185e3r4p1)
- [P Smart Firmware](https://www.precursorintelligence.com/product/huawei/p_smart_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 9.1.0.193(c605e6r1p5t8)
- [P20](https://www.precursorintelligence.com/product/huawei/p20) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [P20 Firmware](https://www.precursorintelligence.com/product/huawei/p20_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.162(c00e156r1p4)
- [P20 Pro](https://www.precursorintelligence.com/product/huawei/p20_pro) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [P20 Pro Firmware](https://www.precursorintelligence.com/product/huawei/p20_pro_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.162(c00e156r1p4)
- [P30](https://www.precursorintelligence.com/product/huawei/p30) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [P30 Firmware](https://www.precursorintelligence.com/product/huawei/p30_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.190(c432e22r2p5)
- [P30 Pro](https://www.precursorintelligence.com/product/huawei/p30_pro) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [P30 Pro Firmware](https://www.precursorintelligence.com/product/huawei/p30_pro_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.0.195(c00e85r2p8)
- [Y6 2019](https://www.precursorintelligence.com/product/huawei/y6_2019) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Y6 2019 Firmware](https://www.precursorintelligence.com/product/huawei/y6_2019_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 9.1.0.290(c185e5r4p1)
- [Y6 Pro 2019](https://www.precursorintelligence.com/product/huawei/y6_pro_2019) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Y6 Pro 2019 Firmware](https://www.precursorintelligence.com/product/huawei/y6_pro_2019_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 9.1.0.290(c636e5r3p1)
- [Y9 2019](https://www.precursorintelligence.com/product/huawei/y9_2019) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Y9 2019 Firmware](https://www.precursorintelligence.com/product/huawei/y9_2019_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 9.1.0.264(c185e2r5p1t8)

## How do I fix CVE-2020-0022?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [source.android.com](https://source.android.com/security/bulletin/2020-02-01) (Patch, Vendor advisory)
- [packetstormsecurity.com](http://packetstormsecurity.com/files/156891/Android-Bluetooth-Remote-Denial-Of-Service.html) (Exploit, Third-party advisory, Vulnerability database)
- [seclists.org](http://seclists.org/fulldisclosure/2020/Feb/10) (Mailing list, Third-party advisory)
- [huawei.com](http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200513-03-smartphone-en) (Third-party advisory)

## Questions

### What is CVE-2020-0022?

CVE-2020-0022 is a high-severity flaw in Android from Google, published on 13 February 2020. An attacker has to be on the same local network without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.

### How serious is CVE-2020-0022?

It scores 8.8 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2020-0022 is 51 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2020-0022 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 6.1%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2020-0022 affect?

For Android from Google: 8.0, 8.1, 9.0, 10.0. The record lists 43 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2020-0022?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2020-0022 affect you?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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