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Vulnerability of GraphicsMagick: three vulnerabilities

Synthesis of the vulnerability 

An attacker can use several vulnerabilities of GraphicsMagick.
Impacted software: Debian, Fedora, openSUSE, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this computer vulnerability: 2/4.
Number of vulnerabilities in this bulletin: 3.
Creation date: 26/10/2016.
Références of this announce: CVE-2016-8682, CVE-2016-8683, CVE-2016-8684, DLA-683-1, DSA-3746-1, FEDORA-2017-c71a0f40f0, FEDORA-2017-d2bab54ac9, openSUSE-SU-2016:2641-1, openSUSE-SU-2016:2644-1, openSUSE-SU-2016:2671-1, openSUSE-SU-2016:2770-1, openSUSE-SU-2016:3060-1, openSUSE-SU-2016:3091-1, SUSE-SU-2016:2964-1, VIGILANCE-VUL-20962.

Description of the vulnerability 

Several vulnerabilities were announced in GraphicsMagick.

An attacker can force a read at an invalid address via SCT, in order to trigger a denial of service, or to obtain sensitive information. [severity:1/4; CVE-2016-8682]

An attacker can generate a buffer overflow via Filesize, in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2016-8683]

An attacker can generate a buffer overflow via Filesize, in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2016-8684]
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This security alert impacts software or systems such as Debian, Fedora, openSUSE, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

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

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

This bulletin is about 3 vulnerabilities.

An attacker with a expert ability can exploit this security announce.

Solutions for this threat 

Debian 7: new graphicsmagick packages (27/10/2016).
New packages are available:
  Debian 7: graphicsmagick 1.3.16-1.1+deb7u5

Debian 8: new graphicsmagick packages (29/12/2016).
New packages are available:
  Debian 8: graphicsmagick 1.3.20-3+deb8u2

Fedora: new GraphicsMagick packages.
New packages are available:
  Fedora 24: GraphicsMagick 1.3.25-6.fc24
  Fedora 25: GraphicsMagick 1.3.25-6.fc25

openSUSE 13.2: new GraphicsMagick packages.
New packages are available:
  openSUSE 13.2: GraphicsMagick 1.3.20-12.1

openSUSE 13.2: new ImageMagick packages.
New packages are available:
  openSUSE 13.2: ImageMagick 6.8.9.8-34.1

openSUSE Leap 42.1: new GraphicsMagick packages.
New packages are available:
  openSUSE Leap 42.1: GraphicsMagick 1.3.21-14.1

openSUSE Leap 42.1: new ImageMagick packages.
New packages are available:
  openSUSE Leap 42.1: ImageMagick 6.8.8.1-24.2

openSUSE Leap 42.2: new GraphicsMagick packages.
New packages are available:
  openSUSE Leap 42.2: GraphicsMagick 1.3.25-3.1

SUSE LE 11: new ImageMagick packages.
New packages are available:
  SUSE LE 11 SP4: ImageMagick 6.4.3.6-7.54.1
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