CVE-2019-12439

Publication date 29 May 2019

Last updated 18 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a local attacker may abuse this flaw to prevent other users from executing bubblewrap or potentially execute code.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bubblewrap	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Notes

msalvatore

Possibly mitigated by symlink restrictions

Patch details

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

Package	Patch details
bubblewrap	Upstream: efc89e3

Severity score breakdown

Parameter	Value
Base score	7.4 · High
Attack vector	Local
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H