---
title: "CVE-2015-8733\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-2015-8733?format=md
keywords: index, follow
---

# CVE-2015-8733

Publication date 4 January 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**5.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2015-8733?format=md#impact-score)

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## Description

The ngsniffer\_process\_record function in wiretap/ngsniffer.c in the Sniffer
file parser in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 does
not validate the relationships between record lengths and record header
lengths, which allows remote attackers to cause a denial of service
(out-of-bounds read and application crash) via a crafted file.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| wireshark | 18.04 LTS bionic | Fixed 2.6.3-1~ubuntu18.04.1 |
| 17.10 artful | Ignored end of life |
| 17.04 zesty | Ignored end of life |
| 16.10 yakkety | Ignored end of life |
| 16.04 LTS xenial | Fixed 2.6.3-1~ubuntu16.04.1 |
| 15.10 wily | Ignored end of life |
| 15.04 vivid | Ignored end of life |
| 14.04 LTS trusty | Fixed 2.6.3-1~ubuntu14.04.1 |
| 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**

5.5 · Medium

* Base metrics

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

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

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8733)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-8733)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-8733)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-8733)

### Other references

* <https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=53a3e53fce30523d11ab3df319fba7b75d63076f>
* <https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11827>
* <http://www.wireshark.org/security/wnpa-sec-2015-51.html>
* <https://www.cve.org/CVERecord?id=CVE-2015-8733>