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vulnerability announce CVE-2018-15687

systemd: privilege escalation via chown_one

Synthesis of the vulnerability

Impacted products: Ubuntu.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 13/11/2018.
Identifiers: CVE-2018-15687, USN-3816-1, USN-3816-2, USN-3816-3, VIGILANCE-VUL-27762.

Description of the vulnerability

An attacker can bypass restrictions via chown_one() of systemd, in order to escalate his privileges.
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