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Vulnerability of tnef: privilege escalation via Winmail.dat SSH Authorized Keys

Synthesis of the vulnerability 

An attacker can bypass restrictions via Winmail.dat SSH Authorized Keys of tnef, in order to escalate his privileges.
Impacted software: Debian, Fedora.
Severity of this computer vulnerability: 3/4.
Creation date: 02/12/2019.
Références of this announce: CVE-2019-18849, DLA-2005-1, FEDORA-2019-5f14b810f8, FEDORA-2019-815807c020, VIGILANCE-VUL-31024.

Description of the vulnerability 

An attacker can bypass restrictions via Winmail.dat SSH Authorized Keys of tnef,...
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This vulnerability bulletin impacts software or systems such as Debian, Fedora.

Our Vigil@nce team determined that the severity of this security note is important.

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

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

Solutions for this threat 

Solutions for this vulnerability are not yet public.
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