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Vulnerability of Links: information disclosure via Tor Clear Dns Prefetch Requests

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Tor Clear Dns Prefetch Requests of Links, in order to obtain sensitive information.
Vulnerable products: Fedora.
Severity of this weakness: 1/4.
Creation date: 31/01/2020.
Références of this bulletin: FEDORA-2020-3eef0246a7, VIGILANCE-VUL-31476.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Tor Clear Dns Prefetch Requests of Links, in order to obtain sensitive information.
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This weakness impacts software or systems such as Fedora.

Our Vigil@nce team determined that the severity of this vulnerability announce is low.

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 threat bulletin.

Solutions for this threat 

Fedora 31: new links packages.
New packages are available:
  Fedora 31: links 2.20.2-1.fc31
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Vigil@nce provides network vulnerability analysis. The Vigil@nce team tracks computer vulnerabilities impacting systems and applications.