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Vulnerability of GIMP: out-of-bounds memory reading via GBR

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via GBR of GIMP, in order to trigger a denial of service, or to obtain sensitive information.
Impacted systems: Debian, Fedora, GIMP, Solaris, Ubuntu.
Severity of this alert: 1/4.
Creation date: 20/12/2017.
Références of this alert: 790784, bulletinapr2018, CVE-2017-17784, DLA-1220-1, DSA-4077-1, FEDORA-2018-67b75f73fa, FEDORA-2018-ccef1ced42, USN-3539-1, VIGILANCE-VUL-24827.

Description of the vulnerability 

An attacker can force a read at an invalid address via GBR of GIMP, in order to trigger a denial of service, or to obtain sensitive information.
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This weakness bulletin impacts software or systems such as Debian, Fedora, GIMP, Solaris, Ubuntu.

Our Vigil@nce team determined that the severity of this computer weakness is low.

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

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

Solutions for this threat 

GIMP: patch for GBR.
A patch is indicated in information sources.

Debian 7: new gimp packages.
New packages are available:
  Debian 7: gimp 2.8.2-2+deb7u3

Debian 8/9: new gimp packages.
New packages are available:
  Debian 8: gimp 2.8.14-1+deb8u2
  Debian 9: gimp 2.8.18-1+deb9u1

Fedora: new gimp packages.
New packages are available:
  Fedora 27: gimp 2.8.22-3.fc27
  Fedora 26: gimp 2.8.22-3.fc26

Oracle Solaris: patch for third party software of April 2018 v1.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

Ubuntu: new gimp packages.
New packages are available:
  Ubuntu 14.04 LTS: gimp 2.8.10-0ubuntu1.2, libgimp2.0 2.8.10-0ubuntu1.2
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