---
title: "CVE-2019-1010127\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-2019-1010127?format=md
keywords: index, follow
---

# CVE-2019-1010127

Publication date 25 July 2019

Last updated 11 February 2026

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-1010127?format=md#impact-score)

Toggle side navigation

## Description

VCFTools vcftools prior to version 0.1.15 is affected by: Use-after-free.
The impact is: Denial of Service or possibly other impact (eg. code
execution or information disclosure). The component is: The
header::add\_FILTER\_descriptor method in header.cpp. The attack vector is:
The victim must open a specially crafted VCF file.

### From the Ubuntu Security Team

It was discovered that VCFtools improperly handled memory
allocation/deallocation, resulting in a use-after-free vulnerability. If a
victim were tricked into opening a specially crafted VCF File, an attacker
could cause VCFtools to leak sensitive information or possibly execute
arbitrary code.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| vcftools | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Not affected |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Not affected |
| 23.04 lunar | Not affected |
| 22.10 kinetic | Not affected |
| 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 | Not affected |
| 19.04 disco | Not affected |
| 18.04 LTS bionic | Fixed 0.1.15-1ubuntu0.1~esm1  Ubuntu Pro |
| 16.04 LTS xenial | Vulnerable |
| 14.04 LTS trusty | Fixed 0.1.11+dfsg-1ubuntu0.1~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)
* [Patch details](https://ubuntu.com/security/CVE-2019-1010127?format=md#patch-details)

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### 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 |
| --- | --- |
| vcftools | * Upstream:   [00a5b61](https://github.com/vcftools/vcftools/commit/00a5b615a61054f23c01a04ebb6790a55029f695) * Upstream:   [e94e299](https://github.com/vcftools/vcftools/commit/e94e2992e2c0f4cc95864a42fe470c040f95712e) * Upstream:   [d657d60](https://github.com/vcftools/vcftools/commit/d657d60e37f5d705f9dbb578b516db6e420fb424) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1010127)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-1010127)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-1010127)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-1010127)

### Related Ubuntu Security Notices (USN)

+ [USN-4835-1](https://usn.ubuntu.com/USN-4835-1)
+ VCFtools vulnerabilities
+ 16 March 2021

### Other references

* <https://docs.google.com/document/d/e/2PACX-1vQJveVcGMp_NMdBY5Je2K2k63RoCYznvKjJk5u1wJRmLotvwQkG5qiqZjpABcOkjzj49wkwGweiFwrc/pub>
* <https://www.cve.org/CVERecord?id=CVE-2019-1010127>