Unrated severityNVD Advisory· Published Feb 13, 2018· Updated Jun 9, 2025
CVE-2018-6954
CVE-2018-6954
Description
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.
Affected products
23- osv-coords23 versionspkg:apk/chainguard/py3.10-systemdpkg:apk/chainguard/py3.11-systemdpkg:apk/chainguard/py3.12-systemdpkg:apk/chainguard/py3.13-systemdpkg:apk/chainguard/py3-supported-systemdpkg:apk/chainguard/py3-systemdpkg:rpm/opensuse/systemd&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/systemd&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/systemd-mini&distro=openSUSE%20Leap%2015.0pkg:rpm/suse/systemd&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/systemd&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/systemd&distro=SUSE%20OpenStack%20Cloud%207
< 0+ 22 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 234-lp150.20.12.1
- (no CPE)range: < 249.4-2.2
- (no CPE)range: < 234-lp150.20.12.1
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 234-24.20.1
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
- (no CPE)range: < 228-150.66.4
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
6- lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.htmlmitrevendor-advisoryx_refsource_SUSE
- usn.ubuntu.com/3816-1/mitrevendor-advisoryx_refsource_UBUNTU
- usn.ubuntu.com/3816-2/mitrevendor-advisoryx_refsource_UBUNTU
- github.com/systemd/systemd/issues/7986mitrex_refsource_MISC
- lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Emitremailing-listx_refsource_MLIST
News mentions
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