---
title: "CVE-2019-12412\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-2019-12412?format=md
keywords: index, follow
---

# CVE-2019-12412

Publication date 30 September 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-12412?format=md#impact-score)

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## Description

A flaw in the libapreq2 v2.07 to v2.13 multipart parser can deference a
null pointer leading to a process crash. A remote attacker could send a
request causing a process crash which could lead to a denial of service
attack.

### From the Ubuntu Security Team

It was discovered that libapreq2 did not properly sanitize the Content-Type
field in certain, crafted HTTP requests. An attacker could use the
vulnerability to cause libapreq2 to crash.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libapreq2 | 22.04 LTS jammy | Not affected |
| 21.10 impish | Not affected |
| 21.04 hirsute | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Not affected |
| 19.10 eoan | Ignored end of life |
| 19.04 disco | Ignored end of life |
| 18.04 LTS bionic | Fixed 2.13-7~deb10u1build0.18.04.1 |
| 16.04 LTS xenial | Fixed 2.13-4ubuntu2+esm1  Ubuntu Pro |
| 14.04 LTS trusty | Fixed 2.13-3ubuntu2+esm1  Ubuntu Pro |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12412)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-12412)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-12412)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-12412)

### Related Ubuntu Security Notices (USN)

+ [USN-4558-1](https://usn.ubuntu.com/USN-4558-1)
+ libapreq2 vulnerabilities
+ 30 September 2020

+ [USN-5041-1](https://usn.ubuntu.com/USN-5041-1)
+ libapreq2 vulnerability
+ 17 August 2021

### Other references

* <http://svn.apache.org/r1866760>
* <https://www.cve.org/CVERecord?id=CVE-2019-12412>