CVE-2017-1000082

Publication date 7 July 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

systemd v233 and earlier fails to safely parse usernames starting with a numeric digit (e.g. "0day"), running the service in question with root privileges rather than the user intended.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
systemd	17.10 artful	Not affected
	17.04 zesty	Ignored
	16.10 yakkety	Ignored
	16.04 LTS xenial	Ignored
	14.04 LTS trusty	Not affected

Notes

mdeslaur

the upstream patch changes behaviour to cause a unit to fail to load if a configuration item could not be parsed, instead of skipping it. Fixing this may cause regressions in certain environments. We will not be fixing this issue in xenial. Administrators are encouraged to carefully audit their unit files and make sure the options are being parsed correctly.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
systemd	Upstream: bb28e68

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H