---
title: "CVE-2017-2626\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-2017-2626?format=md
keywords: index, follow
---

# CVE-2017-2626

Publication date 27 July 2018

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**5.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2017-2626?format=md#impact-score)

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## Description

It was discovered that libICE before 1.0.9-8 used a weak entropy to
generate keys. A local attacker could potentially use this flaw for session
hijacking using the information available from the process list.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libice | 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 | Fixed 2:1.0.9-2ubuntu0.18.04.1 |
| 17.10 artful | Not affected |
| 17.04 zesty | Ignored end of life |
| 16.10 yakkety | Ignored end of life |
| 16.04 LTS xenial | Fixed 2:1.0.9-1ubuntu0.16.04.1+esm1  Ubuntu Pro |
| 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)
* [Patch details](https://ubuntu.com/security/CVE-2017-2626?format=md#patch-details)

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### 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 |
| --- | --- |
| libice | * Upstream:   [?id=ff5](https://cgit.freedesktop.org/xorg/lib/libICE/commit/?id=ff5e59f32255913bb1cdf51441b98c9107ae165b) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.5 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2626)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-2626)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-2626)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-2626)

### Related Ubuntu Security Notices (USN)

+ [USN-5744-1](https://usn.ubuntu.com/USN-5744-1)
+ libICE vulnerability
+ 28 November 2022

### Other references

* <https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/>
* <http://openwall.com/lists/oss-security/2017/03/01/1>
* <https://cgit.freedesktop.org/xorg/lib/libICE/commit/?id=ff5e59f32255913bb1cdf51441b98c9107ae165b>
* <https://www.cve.org/CVERecord?id=CVE-2017-2626>