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Vulnerability of unrar-free: out-of-bounds memory reading via ExtrFile

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via ExtrFile() of unrar-free, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable systems: Debian.
Severity of this threat: 2/4.
Creation date: 19/02/2021.
Références of this weakness: CVE-2017-14122, DLA-2567-1, VIGILANCE-VUL-34622.

Description of the vulnerability 

An attacker can force a read at an invalid address via ExtrFile() of unrar-free,...
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This computer threat alert impacts software or systems such as Debian.

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

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

An attacker with a expert ability can exploit this computer weakness bulletin.

Solutions for this threat 

This vulnerability workaround will be public soon.
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