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Vigil@nce - Debian avahi: privilege escalation via avahi-daemon-check-dns.sh

April 2021 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

Impacted products: Debian, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Severity: 2/4.

Consequences: privileged access/rights, data reading, data creation/edition.

Provenance: user shell.

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

Creation date: 23/02/2021.

DESCRIPTION OF THE VULNERABILITY

An attacker can bypass restrictions via avahi-daemon-check-dns.sh of Debian avahi, in order to escalate his privileges.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

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




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