---
title: "CVE-2017-1000353\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-2017-1000353?format=md
keywords: index, follow
---

# CVE-2017-1000353

Publication date 29 January 2018

Last updated 2 October 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2017-1000353?format=md#impact-score)

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## Description

Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are
vulnerable to an unauthenticated remote code execution. An unauthenticated
remote code execution vulnerability allowed attackers to transfer a
serialized Java `SignedObject` object to the Jenkins CLI, that would be
deserialized using a new `ObjectInputStream`, bypassing the existing
blacklist-based protection mechanism. We're fixing this issue by adding
`SignedObject` to the blacklist. We're also backporting the new HTTP CLI
protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the
remoting-based (i.e. Java serialization) CLI protocol, disabling it by
default.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| jenkins | 17.04 zesty | Not in release |
| 16.10 yakkety | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Ignored end of life |

---

* [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**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | 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 | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/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-2017-1000353)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-1000353)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-1000353)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-1000353)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2017-1000353>
* <https://www.cisa.gov/known-exploited-vulnerabilities-catalog>