---
title: "CVE-2020-12866\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2020-12866?format=md
keywords: index, follow
---

# CVE-2020-12866

Publication date 24 June 2020

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.7 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2020-12866?format=md#impact-score)

Toggle side navigation

## Description

A NULL pointer dereference in SANE Backends before 1.0.30 allows a
malicious device connected to the same local network as the victim to cause
a denial of service, GHSL-2020-079.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| sane-backends | 20.04 LTS focal | Fixed 1.0.29-0ubuntu5.1 |
| 19.10 eoan | Ignored end of life |
| 18.04 LTS bionic | Fixed 1.0.27-1~experimental3ubuntu2.3 |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2020-12866?format=md#patch-details)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| sane-backends | * Upstream:   [30b1831](https://gitlab.com/sane-project/backends/-/commit/30b1831a28f24ab2921b9f717c66d37f02bb81cc) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.7 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Adjacent |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | None |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.7 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12866)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-12866)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-12866)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-12866)

### Related Ubuntu Security Notices (USN)

+ [USN-4470-1](https://usn.ubuntu.com/USN-4470-1)
+ sane-backends vulnerabilities
+ 24 August 2020

### Other references

* <https://gitlab.com/sane-project/backends/-/releases/1.0.30>
* <https://www.cve.org/CVERecord?id=CVE-2020-12866>