---
title: "CVE-2015-2158\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-2015-2158?format=md
keywords: index, follow
---

# CVE-2015-2158

Publication date 6 October 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-2015-2158?format=md#impact-score)

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## Description

Off-by-one error in the pngcrush\_measure\_idat function in pngcrush.c in
pngcrush before 1.7.84 allows remote attackers to cause a denial of service
(application crash) or possibly execute arbitrary code via a crafted PNG
file.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2015-2158?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| pngcrush | 18.10 cosmic | Not affected |
| 18.04 LTS bionic | Not affected |
| 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 | Not affected |
| 15.10 wily | Ignored end of life |
| 15.04 vivid | Ignored end of life |
| 14.10 utopic | Ignored end of life |
| 14.04 LTS trusty | Not affected |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | 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)

## Notes

---

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

introduced in 1.7.83, fixed in 1.7.84

## 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 | None |
  | User interaction | Required |
  | 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:N/UI:R/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2158)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-2158)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-2158)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-2158)

### Other references

* <http://seclists.org/oss-sec/2015/q1/709>
* <https://www.cve.org/CVERecord?id=CVE-2015-2158>