HOME VULNERABILITIESCVE-2019-12439

HIGH

CVE-2019-12439

CWE-20Published: May 29, 2019· Updated: Jun 17, 2026

7.4

CVSS v3.1

Official 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.

Technical Analysis

CVE-2019-12439 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.4.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

projectatomic1 product(s)

bubblewrap

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e

PATCHhttps://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1695963

ADVISORYhttps://github.com/projectatomic/bubblewrap/issues/304

ADVISORYhttps://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1695963

ADVISORYhttps://github.com/projectatomic/bubblewrap/issues/304

ADVISORYhttps://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3

All References (16)

→

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

Quick Facts

CVE IDCVE-2019-12439

CVSS Score7.4 / 10

SeverityHIGH

WeaknessCWE-20

CISA KEVNo

Affected1 vendor(s)

PublishedMay 29, 2019

Related CVEs (CWE-20)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2019-12439 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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