CVE-2018-1063

Name: CVE-2018-1063
Creator: NVD / NIST
Published: 2018-03-02T15:29:00.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.39%

Last modified Jun 17, 2026

CVE-2018-1063 is a vulnerability of currently unknown severity. 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). EPSS estimates a 0.39% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.39%

31.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Enterprise Linux	7.0
Selinux Project	Selinux	All versions

References

https://access.redhat.com/errata/RHSA-2018:0913
https://bugzilla.redhat.com/show_bug.cgi?id=1550122Issue Tracking, Mitigation, Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:0913
https://bugzilla.redhat.com/show_bug.cgi?id=1550122Issue Tracking, Mitigation, Vendor Advisory

Timeline

Published: Mar 2, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1063?

How severe is CVE-2018-1063?

Severity scoring for CVE-2018-1063 is pending analysis. The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1063?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1063?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST