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vulnerability announce CVE-2016-8682 CVE-2016-8683 CVE-2016-8684

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.
Consequences of a hack: user access/rights, denial of service on service, denial of service on client.
Attacker's origin: document.
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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