CVE-2017-5180

Publication date 9 February 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Firejail before 0.9.44.4 and 0.9.38.x LTS before 0.9.38.8 LTS does not consider the .Xauthority case during its attempt to prevent accessing user files with an euid of zero, which allows local users to conduct sandbox-escape attacks via vectors involving a symlink and the --private option.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firejail	17.04 zesty	Not affected
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 0.9.38-1ubuntu0.1
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release

How can I get the fixes?
What do statuses mean?

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

MITRE
NVD
Launchpad
Debian

Other references

http://www.openwall.com/lists/oss-security/2017/01/04/1
https://github.com/netblue30/firejail/issues/1020
http://www.openwall.com/lists/oss-security/2017/01/05/1
https://www.cve.org/CVERecord?id=CVE-2017-5180