CVE-2019-12439

Name: CVE-2019-12439
Creator: NVD / NIST
Published: 2019-05-29T15:29:00.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.49%

Last modified Jun 17, 2026

CVE-2019-12439 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.49%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Projectatomic	Bubblewrap	< 0.3.3

References

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00015.html
https://access.redhat.com/errata/RHSA-2019:1833
https://bugzilla.redhat.com/show_bug.cgi?id=1695963Issue Tracking, Third Party Advisory
https://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50ePatch, Third Party Advisory
https://github.com/projectatomic/bubblewrap/issues/304Third Party Advisory
https://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3Release Notes, Third Party Advisory
https://security.gentoo.org/glsa/202006-18
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00015.html
https://access.redhat.com/errata/RHSA-2019:1833
https://bugzilla.redhat.com/show_bug.cgi?id=1695963Issue Tracking, Third Party Advisory
https://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50ePatch, Third Party Advisory
https://github.com/projectatomic/bubblewrap/issues/304Third Party Advisory
https://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3Release Notes, Third Party Advisory
https://security.gentoo.org/glsa/202006-18

Timeline

Published: May 29, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12439?

How severe is CVE-2019-12439?

Severity scoring for CVE-2019-12439 is pending analysis. The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12439?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12439?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST