---
title: "CVE-2015-8239\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-2015-8239?format=md
keywords: index, follow
---

# CVE-2015-8239

Publication date 10 October 2017

Last updated 26 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**7.0 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2015-8239?format=md#impact-score)

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## Description

The SHA-2 digest support in the sudoers plugin in sudo after 1.8.7 allows
local users with write permissions to parts of the called command to
replace them before it is executed.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2015-8239?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| sudo | 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 |
| 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 17.10 artful | Not affected |
| 17.04 zesty | Not affected |
| 16.10 yakkety | Not affected |
| 16.04 LTS xenial | Not affected |
| 15.10 wily | Ignored end of life |
| 15.04 vivid | Ignored end of life |
| 14.04 LTS trusty | Vulnerable |
| 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)
* [Patch details](https://ubuntu.com/security/CVE-2015-8239?format=md#patch-details)

## Notes

---

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

command digests are available only in 1.8.7 and higher

### 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 |
| --- | --- |
| sudo | * Upstream:   <https://www.sudo.ws/repos/sudo/rev/397722cdd7ec> |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.0 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.0 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8239)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-8239)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-8239)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-8239)

### Other references

* <http://www.openwall.com/lists/oss-security/2015/11/10/2>
* <https://www.sudo.ws/stable.html#1.8.16>
* <https://www.cve.org/CVERecord?id=CVE-2015-8239>