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CVE-2018-15686

Published: 26 October 2018

A vulnerability in unit_deserialize of systemd allows an attacker to supply arbitrary state across systemd re-execution via NotifyAccess. This can be used to improperly influence systemd execution and possibly lead to root privilege escalation. Affected releases are systemd versions up to and including 239.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
systemd
Launchpad, Ubuntu, Debian
upstream Pending

trusty Not vulnerable
(binary not built)
xenial
Released (229-4ubuntu21.8)
bionic
Released (237-3ubuntu10.6)
cosmic
Released (239-7ubuntu10.3)
Patches:
upstream: https://github.com/systemd/systemd/pull/10519
upstream: https://github.com/systemd/systemd/commit/9f1c81d80a435d15ca1bd536a6d043c18c81c047

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H