CVE-2017-5180

high

Published 2017-02-09 · Modified 2026-05-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

8.8

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.8

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.

Predictions

Exploit likelihood

82%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-43359 local linux

Sebastian Krahmer · 2017-01-04

Firejail < 0.9.44.4 / < 0.9.38.8 LTS - Local Sandbox Escape

Source code queued for fetch — refresh in a moment.

OS impact

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`0.9.44.10-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`0.9.44.2-3`
sid	Fixed	`0.9.44.2-3`
forky	Fixed	`0.9.44.2-3`
bullseye	Fixed	`0.9.44.2-3`
bookworm	Fixed	`0.9.44.2-3`

Application impact

Vendor	Product	Versions	Fixed
firejail_project	firejail	`{"endExcluding":"0.9.44.4"}`	`0.9.44.4`

References

CWEs

CWE-862

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.