---
title: "CVE-2018-1128\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-2018-1128?format=md
keywords: index, follow
---

# CVE-2018-1128

Publication date 10 July 2018

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-2018-1128?format=md#impact-score)

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## Description

It was found that cephx authentication protocol did not verify ceph clients
correctly and was vulnerable to replay attack. Any attacker having access
to ceph cluster network who is able to sniff packets on network can use
this vulnerability to authenticate with ceph service and perform actions
allowed by ceph service. Ceph branches master, mimic, luminous and jewel
are believed to be vulnerable.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ceph | 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 |
| 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Ignored end of life |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Ignored end of standard support |

---

* [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-2018-1128?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 |
| --- | --- |
| ceph | * Upstream:   [5ead971](https://github.com/ceph/ceph/commit/5ead97120e07054d80623dada90a5cc764c28468) * Upstream:   [4cbd72f](https://github.com/ceph/ceph/commit/4cbd72f11ecda4c28d1bf47328a4f8672295870a) * Upstream:   [26816cd](https://github.com/ceph/ceph/commit/26816cd80ae245d351d5ce34d8af434fbc798602) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

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

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

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1128)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-1128)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-1128)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-1128)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2018-1128>