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Vulnerability of OptiPNG: code execution

Synthesis of the vulnerability 

An attacker can use a vulnerability of OptiPNG, in order to run code.
Impacted software: Debian, Fedora, openSUSE, openSUSE Leap, Ubuntu.
Severity of this computer vulnerability: 2/4.
Creation date: 08/04/2016.
Références of this announce: CVE-2016-2191, DSA-3546-1, FEDORA-2016-b8f91621c7, openSUSE-SU-2016:1078-1, openSUSE-SU-2016:1082-1, USN-2951-1, VIGILANCE-VUL-19324.

Description of the vulnerability 

An attacker can use a vulnerability of OptiPNG, in order to run code.
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This computer vulnerability impacts software or systems such as Debian, Fedora, openSUSE, openSUSE Leap, Ubuntu.

Our Vigil@nce team determined that the severity of this weakness bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this weakness.

Solutions for this threat 

Debian: new optipng packages.
New packages are available:
  Debian 7: optipng 0.6.4-1+deb7u2
  Debian 8: optipng 0.7.5-1+deb8u1

Fedora: new optipng packages.
New packages are available:
  Fedora 23: optipng 0.7.6-1.fc23

openSUSE: new optipng packages.
New packages are available:
  openSUSE 13.2: optipng 0.7.5-2.3.2
  openSUSE Leap 42.1: optipng 0.7.5-8.2

Ubuntu: new optipng packages.
New packages are available:
  Ubuntu 15.10: optipng 0.7.5-1ubuntu0.1
  Ubuntu 14.04 LTS: optipng 0.6.4-1ubuntu0.14.04.1
  Ubuntu 12.04 LTS: optipng 0.6.4-1ubuntu0.12.04.1
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