High severity · published May 29, 2019
CVE-2019-12439
bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point
7.8
CVSS
0.6%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BU
Bubblewrap · Projectatomic
before 0.3.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-12439
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-12439
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00028.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00015.html
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:1833
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1695963
Patch
https://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e
Third Party Advisory
https://github.com/projectatomic/bubblewrap/issues/304
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