# What is CVE-2020-8832?

> CVE-2020-8832 is a medium-severity flaw (CVSS 5.5) in Ubuntu Linux from Canonical, published on 10 April 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 0.5%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2020-8832

## 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:** 17 out of 100 (Info); action: Track. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 5.5 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:** 0.5% (latest exploit-likelihood forecast)
- **Published:** 10 April 2020
- **Record last updated:** 9 November 2023
- **Main product:** Ubuntu Linux from Canonical
- **Affected products:** 60

## What is CVE-2020-8832? In plain terms

An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data.

### The official description

The fix for the Linux kernel in Ubuntu 18.04 LTS for CVE-2019-14615 ("The Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors.") was discovered to be incomplete, meaning that in versions of the kernel before 4.15.0-91.92, an attacker could use this vulnerability to expose sensitive information.

### What kind of flaw is it?

- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

### How an attack on it works

- Where an attacker can be: Already on the device
- How hard it is to pull off: Easy: no special conditions
- Login needed first: An ordinary user account
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read data

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

## Is CVE-2020-8832 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 0.5%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.5%, 0.5%, 0.5%, 0.5%, 0.5%, 0.5%, 0.5%.

### Timeline

- 10 April 2020: Published
- 9 November 2023: Record last updated

### How Precursor Intelligence ranks it

CVE-2020-8832 scores **17 out of 100 (Info)**, with the action "Track".

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-2020-8832?

The published record lists 60 products.

- [Ubuntu Linux](https://www.precursorintelligence.com/product/canonical/ubuntu_linux) by [Canonical](https://www.precursorintelligence.com/vendors/canonical) (Operating system): 14.04, 16.04, 18.04
- [Aff 8300](https://www.precursorintelligence.com/product/netapp/aff_8300) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff 8300 Firmware](https://www.precursorintelligence.com/product/netapp/aff_8300_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff 8700](https://www.precursorintelligence.com/product/netapp/aff_8700) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff 8700 Firmware](https://www.precursorintelligence.com/product/netapp/aff_8700_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff A220](https://www.precursorintelligence.com/product/netapp/aff_a220) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff A220 Firmware](https://www.precursorintelligence.com/product/netapp/aff_a220_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff A320](https://www.precursorintelligence.com/product/netapp/aff_a320) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff A320 Firmware](https://www.precursorintelligence.com/product/netapp/aff_a320_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff A400](https://www.precursorintelligence.com/product/netapp/aff_a400) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff A400 Firmware](https://www.precursorintelligence.com/product/netapp/aff_a400_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff A700s](https://www.precursorintelligence.com/product/netapp/aff_a700s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff A700s Firmware](https://www.precursorintelligence.com/product/netapp/aff_a700s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Aff C190](https://www.precursorintelligence.com/product/netapp/aff_c190) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Aff C190 Firmware](https://www.precursorintelligence.com/product/netapp/aff_c190_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Cloud Backup](https://www.precursorintelligence.com/product/netapp/cloud_backup) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Fas Baseboard Management Controller A220](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a220) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas Baseboard Management Controller A220 Firmware](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a220_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas Baseboard Management Controller A320](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a320) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas Baseboard Management Controller A320 Firmware](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a320_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas Baseboard Management Controller A400](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a400) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas Baseboard Management Controller A400 Firmware](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a400_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas Baseboard Management Controller A800](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a800) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas Baseboard Management Controller A800 Firmware](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_a800_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas Baseboard Management Controller C190](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_c190) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas Baseboard Management Controller C190 Firmware](https://www.precursorintelligence.com/product/netapp/fas_baseboard_management_controller_c190_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas2720](https://www.precursorintelligence.com/product/netapp/fas2720) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas2720 Firmware](https://www.precursorintelligence.com/product/netapp/fas2720_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas2750](https://www.precursorintelligence.com/product/netapp/fas2750) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas2750 Firmware](https://www.precursorintelligence.com/product/netapp/fas2750_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas8300](https://www.precursorintelligence.com/product/netapp/fas8300) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas8300 Firmware](https://www.precursorintelligence.com/product/netapp/fas8300_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Fas8700](https://www.precursorintelligence.com/product/netapp/fas8700) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Fas8700 Firmware](https://www.precursorintelligence.com/product/netapp/fas8700_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H300e](https://www.precursorintelligence.com/product/netapp/h300e) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H300e Firmware](https://www.precursorintelligence.com/product/netapp/h300e_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H300s](https://www.precursorintelligence.com/product/netapp/h300s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H300s Firmware](https://www.precursorintelligence.com/product/netapp/h300s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H410c](https://www.precursorintelligence.com/product/netapp/h410c) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H410c Firmware](https://www.precursorintelligence.com/product/netapp/h410c_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H410s](https://www.precursorintelligence.com/product/netapp/h410s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H410s Firmware](https://www.precursorintelligence.com/product/netapp/h410s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H500e](https://www.precursorintelligence.com/product/netapp/h500e) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H500e Firmware](https://www.precursorintelligence.com/product/netapp/h500e_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H500s](https://www.precursorintelligence.com/product/netapp/h500s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H500s Firmware](https://www.precursorintelligence.com/product/netapp/h500s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H610c](https://www.precursorintelligence.com/product/netapp/h610c) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H610c Firmware](https://www.precursorintelligence.com/product/netapp/h610c_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H610s](https://www.precursorintelligence.com/product/netapp/h610s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H610s Firmware](https://www.precursorintelligence.com/product/netapp/h610s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H615c](https://www.precursorintelligence.com/product/netapp/h615c) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H615c Firmware](https://www.precursorintelligence.com/product/netapp/h615c_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H700e](https://www.precursorintelligence.com/product/netapp/h700e) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H700e Firmware](https://www.precursorintelligence.com/product/netapp/h700e_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [H700s](https://www.precursorintelligence.com/product/netapp/h700s) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [H700s Firmware](https://www.precursorintelligence.com/product/netapp/h700s_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- Solidfire & Hci Management Node by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Solidfire Baseboard Management Controller](https://www.precursorintelligence.com/product/netapp/solidfire_baseboard_management_controller) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Hardware): version not specified
- [Solidfire Baseboard Management Controller Firmware](https://www.precursorintelligence.com/product/netapp/solidfire_baseboard_management_controller_firmware) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Operating system): version not specified
- [Steelstore Cloud Integrated Storage](https://www.precursorintelligence.com/product/netapp/steelstore_cloud_integrated_storage) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified

## How do I fix CVE-2020-8832?

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 latest update from the vendor. The references list where the vendor has published details.
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

- [bugs.launchpad.net](https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1862840) (Issue tracking, Third-party advisory)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20200430-0004/) (Third-party advisory)
- [usn.ubuntu.com](https://usn.ubuntu.com/usn/usn-4302-1) (Third-party advisory)

## Questions

### What is CVE-2020-8832?

CVE-2020-8832 is a medium-severity flaw in Ubuntu Linux from Canonical, published on 10 April 2020. An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data.

### How serious is CVE-2020-8832?

It scores 5.5 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2020-8832 is 17 out of 100, which is Info. Its action is "Track". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2020-8832 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 0.5%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2020-8832 affect?

For Ubuntu Linux from Canonical: 14.04, 16.04, 18.04. The record lists 60 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2020-8832?

Install the update the vendor names in its advisory. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2020-8832 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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