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Vulnerability of FreeBSD: use after free via Loopback IPv6 Hop-by-Hop Options

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via Loopback IPv6 Hop-by-Hop Options of FreeBSD, in order to trigger a denial of service, and possibly to run code.
Impacted products: FreeBSD.
Severity of this bulletin: 2/4.
Creation date: 03/09/2020.
Références of this threat: CVE-2020-7462, FreeBSD-SA-20:24.ipv6, VIGILANCE-VUL-33237.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via Loopback IPv6 Hop-by-...
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This vulnerability note impacts software or systems such as FreeBSD.

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

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

An attacker with a expert ability can exploit this computer threat note.

Solutions for this threat 

Solutions, fixes, patches and workarounds for this vulnerability are not yet public.
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