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Vigil@nce - FreeBSD: use after free via UNIX-Domain Socket Rights Transmission

September 2019 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer...

SYNTHESIS OF THE VULNERABILITY

Impacted products: FreeBSD.

Severity: 2/4.

Consequences: administrator access/rights, denial of service on server.

Provenance: user shell.

Confidence: confirmed by the editor (5/5).

Creation date: 25/07/2019.

DESCRIPTION OF THE VULNERABILITY

An attacker can force the usage of a freed memory area via UNIX-Domain Socket Rights Transmission of FreeBSD, in order to trigger a denial of service, and possibly to run code.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/...




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