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Vulnerability of Varnish Cache: information disclosure via Workspace Pointer

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Workspace Pointer of Varnish Cache, in order to obtain sensitive information.
Vulnerable systems: openSUSE Leap, SLES, Varnish.
Severity of this threat: 2/4.
Creation date: 21/10/2019.
Références of this weakness: CVE-2019-20637, openSUSE-SU-2020:0808-1, openSUSE-SU-2020:0819-1, VIGILANCE-VUL-30680, VSV00004.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Workspace Pointer of Varnish Cache, in order to obtain sensitive information.
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This cybersecurity note impacts software or systems such as openSUSE Leap, SLES, Varnish.

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

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

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

Solutions for this threat 

Varnish Cache: version 6.3.1.
The version 6.3.1 is fixed:
  https://www.varnish-cache.org/

Varnish Cache: version 6.2.2.
The version 6.2.2 is fixed:
  https://www.varnish-cache.org/

Varnish Cache: version 6.0.5.
The version 6.0.5 is fixed:
  https://www.varnish-cache.org/

openSUSE Leap 15.1: new varnish packages.
New packages are available:
  openSUSE Leap 15.1: varnish 6.2.1-lp151.3.6.1

SUSE LE 15 SP1: new varnish packages.
New packages are available:
  SUSE LE 15 SP1: varnish 6.2.1-bp151.4.6.1
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