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Vulnerability of Libarchive: memory corruption via archive_read_support_format_rar5.c

Synthesis of the vulnerability 

An attacker can trigger a memory corruption via archive_read_support_format_rar5.c of Libarchive, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Ubuntu.
Severity of this announce: 3/4.
Creation date: 03/03/2020.
Références of this computer vulnerability: CVE-2020-9308, USN-4293-1, VIGILANCE-VUL-31717.

Description of the vulnerability 

An attacker can trigger a memory corruption via archive_read_support_format_rar5...
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This cybersecurity bulletin impacts software or systems such as Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity weakness 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 computer vulnerability bulletin.

Solutions for this threat 

Solutions for this vulnerability are not yet public.
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