CVE-2018-12559

Description

An issue was discovered in the cantata-mounter D-Bus service in Cantata through 2.3.1. The mount target path check in mounter.cpp `mpOk()` is insufficient. A regular user can consequently mount a CIFS filesystem anywhere (e.g., outside of the /home directory tree) by passing directory traversal sequences such as a home/../usr substring.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.40%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/CDrummond/cantata/commit/afc4f8315d3e96574925fb530a7004cc9e6ce3d3 patch technical description
http://www.openwall.com/lists/oss-security/2018/06/18/1 mailing list technical description

Frequently Asked Questions

What is the severity of CVE-2018-12559?
CVE-2018-12559 has been scored as a high severity vulnerability.
How to fix CVE-2018-12559?
To fix CVE-2018-12559, 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-2018-12559 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-12559 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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