VulnerabilityModified
CVE-2019-12439
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.
HIGH 7.8EPSS 0.49%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.49% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- projectatomic/bubblewrap
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.