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Vulnerability of WebKitGTK: information disclosure via HTTP Proxy Settings

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via HTTP Proxy Settings of WebKitGTK, in order to obtain sensitive information.
Impacted systems: openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this alert: 2/4.
Creation date: 17/04/2019.
Références of this alert: CVE-2019-11070, openSUSE-SU-2019:1374-1, openSUSE-SU-2019:1391-1, RHSA-2020:4035-01, SUSE-SU-2019:1137-1, SUSE-SU-2019:1155-1, USN-3948-1, VIGILANCE-VUL-29057.

Description of the vulnerability 

An attacker can bypass access restrictions to data via HTTP Proxy Settings of WebKitGTK, in order to obtain sensitive information.
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This vulnerability note impacts software or systems such as openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity vulnerability is medium.

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

An attacker with a expert ability can exploit this computer threat note.

Solutions for this threat 

openSUSE Leap: new webkit2gtk3 packages.
New packages are available:
  openSUSE Leap 15.0: webkit2gtk3 2.24.1-lp150.2.19.1
  openSUSE Leap 42.3: webkit2gtk3 2.24.1-27.1

RHEL 7.8: new webkitgtk4 packages.
New packages are available:
  RHEL 7.0-7.8: webkitgtk4 2.28.2-2.el7

SUSE LE: new webkit2gtk3 packages.
New packages are available:
  SUSE LE 15 RTM: webkit2gtk3 2.24.1-3.24.1
  SUSE LE 12 SP4: webkit2gtk3 2.24.1-2.41.5
  SUSE LE 12 SP3: webkit2gtk3 2.24.1-2.41.5
  SUSE LE 12 SP2: webkit2gtk3 2.24.1-2.41.5

Ubuntu: new webkit2gtk packages.
New packages are available:
  Ubuntu 18.10: libjavascriptcoregtk-4.0-18 2.24.1-0ubuntu0.18.10.2, libwebkit2gtk-4.0-37 2.24.1-0ubuntu0.18.10.2
  Ubuntu 18.04 LTS: libjavascriptcoregtk-4.0-18 2.24.1-0ubuntu0.18.04.1, libwebkit2gtk-4.0-37 2.24.1-0ubuntu0.18.04.1
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