CVE-2018-1063

Description

Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.

Category

4.4
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: SELinux Project policycoreutils
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1550122 issue tracking vendor advisory mitigation
https://access.redhat.com/errata/RHSA-2018:0913 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-1063?
CVE-2018-1063 has been scored as a medium severity vulnerability.
How to fix CVE-2018-1063?
To fix CVE-2018-1063, 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-2018-1063 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-1063 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.
What software or system is affected by CVE-2018-1063?
CVE-2018-1063 affects SELinux Project policycoreutils.
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