DEBIAN-CVE-2018-6954

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Source
https://security-tracker.debian.org/tracker/CVE-2018-6954
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-6954.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2018-6954
Upstream
Published
2018-02-13T20:29:00Z
Modified
2025-09-30T03:54:23Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.

References

Affected packages

Debian:11 / systemd

Package

Name
systemd
Purl
pkg:deb/debian/systemd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
238-1

Ecosystem specific 

{
    "urgency": "low"
}

Debian:12 / systemd

Package

Name
systemd
Purl
pkg:deb/debian/systemd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
238-1

Ecosystem specific 

{
    "urgency": "low"
}

Debian:13 / systemd

Package

Name
systemd
Purl
pkg:deb/debian/systemd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
238-1

Ecosystem specific 

{
    "urgency": "low"
}

Debian:14 / systemd

Package

Name
systemd
Purl
pkg:deb/debian/systemd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
238-1

Ecosystem specific 

{
    "urgency": "low"
}