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Vulnerability of Chrome: five vulnerabilities

Synthesis of the vulnerability 

An attacker can use several vulnerabilities of Chrome.
Vulnerable software: Fedora, Chrome, openSUSE Leap, Opera, RHEL, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 4/4.
Number of vulnerabilities in this bulletin: 5.
Creation date: 30/03/2017.
Références of this computer vulnerability: CERTFR-2017-AVI-095, CVE-2017-5052, CVE-2017-5053, CVE-2017-5054, CVE-2017-5055, CVE-2017-5056, FEDORA-2017-5b199bf121, FEDORA-2017-ff6940bf63, openSUSE-SU-2017:0908-1, openSUSE-SU-2017:0909-1, RHSA-2017:0860-01, VIGILANCE-VUL-22291.

Description of the vulnerability 

Several vulnerabilities were announced in Chrome.

An attacker can force the usage of a freed memory area via Printing, in order to trigger a denial of service, and possibly to run code. [severity:4/4; CVE-2017-5055]

An attacker can generate a buffer overflow via V8, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2017-5054]

An attacker can generate a memory corruption via Blink, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2017-5052]

An attacker can force the usage of a freed memory area via Blink, in order to trigger a denial of service, and possibly to run code. [severity:3/4; CVE-2017-5056]

An attacker can force a read at an invalid address via V8, in order to trigger a denial of service, or to obtain sensitive information. [severity:2/4; CVE-2017-5053]
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This computer threat bulletin impacts software or systems such as Fedora, Chrome, openSUSE Leap, Opera, RHEL, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this security threat is critical.

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

This bulletin is about 5 vulnerabilities.

An attacker with a expert ability can exploit this computer vulnerability alert.

Solutions for this threat 

Chrome: version 57.0.2987.133.
The version 57.0.2987.133 is fixed:
  https://www.google.fr/chrome/browser/desktop/

Fedora 24: new qt5-qtwebengine packages.
New packages are available:
  Fedora 24: qt5-qtwebengine 5.6.3-0.2.20170712gitee719ad313e564.fc24

Fedora 25: new chromium packages.
New packages are available:
  Fedora 25: chromium 57.0.2987.133-1.fc25

openSUSE Leap: new chromium packages.
New packages are available:
  openSUSE Leap 42.1: chromium 57.0.2987.133-108.1
  openSUSE Leap 42.2: chromium 57.0.2987.133-104.6.1

Opera: version 44.0.2510.1159.
The version 44.0.2510.1159 is fixed:
  http://www.opera.com/

RHEL 6.9: new chromium-browser packages.
New packages are available:
  RHEL 6: chromium-browser 57.0.2987.133-1.el6_9

SUSE LE 12: new chromium packages.
New packages are available:
  SUSE LE 12 RTM-SP2: chromium 57.0.2987.133-11.1
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