---
title: "CVE-2015-8947\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-2015-8947?format=md
keywords: index, follow
---

# CVE-2015-8947

Publication date 19 July 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.6 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2015-8947?format=md#impact-score)

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## Description

hb-ot-layout-gpos-table.hh in HarfBuzz before 1.0.5 allows remote attackers
to cause a denial of service (buffer over-read) or possibly have
unspecified other impact via crafted data, a different vulnerability than
CVE-2016-2052.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| harfbuzz | 17.04 zesty | Not affected |
| 16.10 yakkety | Not affected |
| 16.04 LTS xenial | Fixed 1.0.1-1ubuntu0.1 |
| 15.10 wily | Ignored end of life |
| 14.04 LTS trusty | Fixed 0.9.27-1ubuntu1.1 |
| 12.04 LTS precise | 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)
* [Patch details](https://ubuntu.com/security/CVE-2015-8947?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 |
| --- | --- |
| harfbuzz | * Upstream:   [?id=f96](https://cgit.freedesktop.org/harfbuzz/commit/?id=f96664974774bfeb237a7274f512f64aaafb201e) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.6 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.6 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8947)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-8947)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-8947)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-8947)

### Related Ubuntu Security Notices (USN)

+ [USN-3067-1](https://usn.ubuntu.com/USN-3067-1)
+ HarfBuzz vulnerabilities
+ 24 August 2016

### Other references

* <https://github.com/behdad/harfbuzz/issues/139#issuecomment-146984679>
* <https://www.cve.org/CVERecord?id=CVE-2015-8947>