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No exploitation reportedFix available

CVE-2018-1063

No exploitation reported by the sources we read.

  • Published2018-03-02
  • WeaknessCWE-59

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2018-03-0215:29CVE publishedNVD

Versions per branch

NVD
Redhat enterprise linux
BranchAffectedFixed in
7.0= 7.0no fix published
Selinux project selinux
BranchAffectedFixed in
—all versionsno fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • coreutilsopenSUSE:Tumbleweedall versions · fixed in 3.2-1.4
  • policycoreutilsUbuntu:16.04:LTSall versions · no fixed version listed
  • policycoreutilsUbuntu:14.04:LTSall versions · no fixed version listed
  • policycoreutilsSUSE:Linux Enterprise Server for SAP Applications 12 SP3all versions · fixed in 2.5-10.3.1
  • policycoreutilsSUSE:Linux Enterprise Server for SAP Applications 12 SP2all versions · fixed in 2.5-10.3.1
  • policycoreutilsSUSE:Linux Enterprise Server for SAP Applications 11 SP4all versions · fixed in 2.0.79-4.9.3.3
  • policycoreutilsSUSE:Linux Enterprise Server for Raspberry Pi 12 SP2all versions · fixed in 2.5-10.3.1
  • policycoreutilsSUSE:Linux Enterprise Server 12 SP3all versions · fixed in 2.5-10.3.1

10 more package ranges on OSV.dev

Vendor advisories

  • RHSA-2018:0913 Red Hat Product Security109 products fixed

    Red Hat Security Advisory: policycoreutils security, bug fix, and enhancement update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2018:0913 · 109 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  2. Workaround from the vendor Red Hat Product Security RHSA-2018:0913 · 109 productsRemove any symbolic links from /tmp and /var/tmp directories before relabeling the file system.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.04.4read 2026-10-23
  • NVDCVSS 2.03.3read 2026-10-23
  • CNAweakness (CWE)CWE-59known since 2026-10-23
  • NVDweakness (CWE)CWE-59read 2026-10-23
  • FIRST EPSSEPSS score0.4 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Published
2018-03-02
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-p5j6-rvwf-qchg

Frequently asked questions

What is CVE-2018-1063?

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.

Is CVE-2018-1063 actively exploited?

Active exploitation of CVE-2018-1063 has not been confirmed. Its EPSS score was 0.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-1063?

CVE-2018-1063 has a CVSS v3 base score of 4.4 (MEDIUM severity), with vector string CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

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