CVE-2019-12439

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.

Category

7.4
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/projectatomic/bubblewrap/issues/304 third party advisory
https://github.com/projectatomic/bubblewrap/commit/efc89e3b939b4bde42c10f065f6b7b02958ed50e third party advisory patch
https://bugzilla.redhat.com/show_bug.cgi?id=1695963 issue tracking third party advisory
https://github.com/projectatomic/bubblewrap/releases/tag/v0.3.3 third party advisory release notes
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00028.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00015.html vendor advisory
https://access.redhat.com/errata/RHSA-2019:1833 vendor advisory
https://security.gentoo.org/glsa/202006-18 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-12439?
CVE-2019-12439 has been scored as a high severity vulnerability.
How to fix CVE-2019-12439?
To fix CVE-2019-12439, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12439 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-12439 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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