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Vulnerability of LibVNCServer: vulnerability via rfbProcessClientNormalMessage

Synthesis of the vulnerability 

A vulnerability via rfbProcessClientNormalMessage() of LibVNCServer was announced.
Impacted systems: Debian, Fedora, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this alert: 2/4.
Creation date: 28/03/2018.
Références of this alert: CVE-2018-7225, DLA-1332-1, DLA-1979-1, DLA-2014-1, DLA-2045-1, DSA-4221-1, FEDORA-2018-43541091ab, FEDORA-2018-4897772a43, openSUSE-SU-2018:0851-1, RHSA-2018:1055-01, SUSE-SU-2018:0830-1, USN-3618-1, USN-4547-1, USN-4573-1, USN-4587-1, VIGILANCE-VUL-25667.

Description of the vulnerability 

A vulnerability via rfbProcessClientNormalMessage() of LibVNCServer was announced.
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This computer weakness announce impacts software or systems such as Debian, Fedora, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this security alert 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 vulnerability.

Solutions for this threat 

Debian 7: new libvncserver packages.
New packages are available:
  Debian 7: libvncserver 0.9.9+dfsg-1+deb7u3

Debian 8: new italc packages.
New packages are available:
  Debian 8: italc 1:2.0.2+dfsg1-2+deb8u1

Debian 8: new tightvnc packages.
New packages are available:
  Debian 8: tightvnc 1.3.9-6.5+deb8u1

Debian 8: new vino packages.
New packages are available:
  Debian 8: vino 3.14.0-2+deb8u1

Debian: new libvncserver packages.
New packages are available:
  Debian 8: libvncserver 0.9.9+dfsg2-6.1+deb8u3
  Debian 9: libvncserver 0.9.11+dfsg-1+deb9u1

Fedora: new libvncserver packages.
New packages are available:
  Fedora 26: libvncserver 0.9.11-3.fc26
  Fedora 27: libvncserver 0.9.11-5.fc27

openSUSE Leap 42.3: new LibVNCServer packages.
New packages are available:
  openSUSE Leap 42.3: LibVNCServer 0.9.9-16.3.1

RHEL 7.5: new libvncserver packages.
New packages are available:
  RHEL 7: libvncserver 0.9.9-12.el7_5

SUSE LE 12 SP2/3: new LibVNCServer packages.
New packages are available:
  SUSE LE 12 SP2: LibVNCServer 0.9.9-17.5.1
  SUSE LE 12 SP3: LibVNCServer 0.9.9-17.5.1

Ubuntu 16.04: new italc packages.
New packages are available:
  Ubuntu 16.04 LTS: italc 1:2.0.2+dfsg1-4ubuntu0.1

Ubuntu 18.04: new italc packages.
New packages are available:
  Ubuntu 18.04 LTS: italc 1:3.0.3+dfsg1-3ubuntu0.1

Ubuntu: new libvncserver packages.
New packages are available:
  Ubuntu 17.10: libvncclient1 0.9.11+dfsg-1ubuntu0.1, libvncserver1 0.9.11+dfsg-1ubuntu0.1
  Ubuntu 16.04 LTS: libvncserver1 0.9.10+dfsg-3ubuntu0.16.04.2
  Ubuntu 14.04 LTS: libvncserver0 0.9.9+dfsg-1ubuntu1.3

Ubuntu: new vino packages.
New packages are available:
  Ubuntu 20.04 LTS: vino 3.22.0-5ubuntu2.1
  Ubuntu 18.04 LTS: vino 3.22.0-3ubuntu1.1
  Ubuntu 16.04 LTS: vino 3.8.1-0ubuntu9.3
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