---
title: "CVE-2018-12326\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-2018-12326?format=md
keywords: index, follow
---

# CVE-2018-12326

Publication date 17 June 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**8.4 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2018-12326?format=md#impact-score)

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## Description

Buffer overflow in redis-cli of Redis before 4.0.10 and 5.x before 5.0 RC3
allows an attacker to achieve code execution and escalate to higher
privileges via a crafted command line. NOTE: It is unclear whether there
are any common situations in which redis-cli is used with, for example, a
-h (aka hostname) argument from an untrusted source.

### From the Ubuntu Security Team

It was discovered that Redis incorrectly handled certain arguments. An
attacker could possibly use this issue to execute arbitrary code.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| redis | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Fixed 5:4.0.9-1ubuntu0.1 |
| 17.10 artful | Ignored end of life |
| 16.04 LTS xenial | Fixed 2:3.0.6-1ubuntu0.2 |
| 14.04 LTS trusty | Fixed 2:2.8.4-2ubuntu0.2 |

---

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

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.4 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.4 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12326)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-12326)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-12326)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-12326)

### Other references

* <https://gist.github.com/fakhrizulkifli/f831f40ec6cde4f744c552503d8698f0>
* <https://github.com/antirez/redis/commit/9fdcc15962f9ff4baebe6fdd947816f43f730d50>
* <https://raw.githubusercontent.com/antirez/redis/4.0/00-RELEASENOTES>
* <https://raw.githubusercontent.com/antirez/redis/5.0/00-RELEASENOTES>
* <https://www.cve.org/CVERecord?id=CVE-2018-12326>