---
title: "CVE-2017-1000366\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-2017-1000366?format=md
keywords: index, follow
---

# CVE-2017-1000366

Publication date 19 June 2017

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2017-1000366?format=md#impact-score)

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## Description

glibc contains a vulnerability that allows specially crafted
LD\_LIBRARY\_PATH values to manipulate the heap/stack, causing them to alias,
potentially resulting in arbitrary code execution. Please note that
additional hardening changes have been made to glibc to prevent
manipulation of stack and heap memory but these issues are not directly
exploitable, as such they have not been given a CVE. This affects glibc
2.25 and earlier.

### From the Ubuntu Security Team

It was discovered that the GNU C library did not properly handle
memory when processing environment variables for setuid programs.
A local attacker could use this in combination with another
vulnerability to gain administrative privileges.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| eglibc | 17.04 zesty | Not in release |
| 16.10 yakkety | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Fixed 2.19-0ubuntu6.13 |
| glibc | 17.04 zesty | Fixed 2.24-9ubuntu2.2 |
| 16.10 yakkety | Fixed 2.24-3ubuntu2.2 |
| 16.04 LTS xenial | Fixed 2.23-0ubuntu9 |
| 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)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.8 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000366)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-1000366)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-1000366)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-1000366)

### Related Ubuntu Security Notices (USN)

+ [USN-3323-1](https://usn.ubuntu.com/USN-3323-1)
+ GNU C Library vulnerability
+ 19 June 2017

+ [USN-3323-2](https://usn.ubuntu.com/USN-3323-2)
+ GNU C Library vulnerability
+ 29 June 2017

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2017-1000366>