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Vulnerability of PAM U2F: information disclosure via File Descriptor

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via File Descriptor of PAM U2F, in order to obtain sensitive information.
Vulnerable products: Fedora, Edge EdgeHTML, IE.
Severity of this weakness: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 13/08/2019.
Références of this bulletin: CVE-2019-1220, CVE-2019-1221, FEDORA-2019-cd8f4b9568, VIGILANCE-VUL-30024.

Description of the vulnerability 

An attacker can bypass access restrictions to data via File Descriptor of PAM U2F, in order to obtain sensitive information.
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This weakness impacts software or systems such as Fedora, Edge EdgeHTML, IE.

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

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

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this threat bulletin.

Solutions for this threat 

Fedora 29: new pam-u2f packages.
New packages are available:
  Fedora 29: pam-u2f 1.0.8-1.fc29

Microsoft IE/Edge: patch of September 2019.
A patch is indicated in information sources.
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