---
title: "CVE-2019-10127\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-2019-10127?format=md
keywords: index, follow
---

# CVE-2019-10127

Publication date 19 March 2021

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-10127?format=md#impact-score)

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## Description

A vulnerability was found in postgresql versions 11.x prior to 11.3. The
Windows installer for BigSQL-supplied PostgreSQL does not lock down the ACL
of the binary installation directory or the ACL of the data directory; it
keeps the inherited ACL. In the default configuration, an attacker having
both an unprivileged Windows account and an unprivileged PostgreSQL account
can cause the PostgreSQL service account to execute arbitrary code. An
attacker having only the unprivileged Windows account can read arbitrary
data directory files, essentially bypassing database-imposed read access
limitations. An attacker having only the unprivileged Windows account can
also delete certain data directory files.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2019-10127?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| postgresql-10 | 19.04 disco | Not in release |
| 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |
| postgresql-11 | 19.04 disco | Not affected |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |
| postgresql-9.1 | 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |
| postgresql-9.3 | 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not affected |
| postgresql-9.5 | 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Not in release |
| 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)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

windows-specific

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10127)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-10127)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-10127)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-10127)

### Other references

* <https://www.postgresql.org/about/news/1939/>
* <https://www.cve.org/CVERecord?id=CVE-2019-10127>