---
cve: "CVE-2019-12439"
severity: "HIGH"
cvss: 7.4
epss: "0.6%"
vendor: "n/a"
kev: false
exploited: false
published: "2019-05-29 14:42:08"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T22:24:11+02:00"
---

# CVE-2019-12439

> 7.4 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- bc13e228d172cc2385aa445b512c6bf8ca2f3376 (Commit)
- efc89e3b939b4bde42c10f065f6b7b02958ed50e (Commit)

## Referenzen

- <https://github.com/projectatomic/bubblewrap/issues/304>
- <https://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e>
- <https://bugzilla.redhat.com/show_bug.cgi?id=1695963>
- <https://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3>
- <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://security.gentoo.org/glsa/202006-18>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2019-12439) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_