CVE-2017-18188
First published: Wed Feb 14 2018(Updated: )
OpenRC opentmpfiles through 0.1.3, when the fs.protected_hardlinks sysctl is turned off, allows local users to obtain ownership of arbitrary files by creating a hard link inside a directory on which "chown -R" will be run.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openr Opentmpfiles | <=0.1.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-18188?
CVE-2017-18188 is considered a moderate severity vulnerability as it allows local users to potentially take ownership of arbitrary files.
How do I fix CVE-2017-18188?
To mitigate CVE-2017-18188, ensure that the fs.protected_hardlinks sysctl setting is enabled.
Which versions of OpenRC opentmpfiles are affected by CVE-2017-18188?
CVE-2017-18188 affects OpenRC opentmpfiles versions up to and including 0.1.3.
Can remote users exploit CVE-2017-18188?
No, CVE-2017-18188 can only be exploited by local users with access to the system.
What actions can be taken to secure a system affected by CVE-2017-18188?
In addition to enabling fs.protected_hardlinks, regularly update OpenRC opentmpfiles to ensure any security patches are applied.
- collector/nvd-index
- agent/type
- agent/weakness
- agent/references
- agent/author
- agent/severity
- agent/softwarecombine
- agent/description
- agent/tags
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- vendor/openr
- canonical/openr opentmpfiles
- version/openr opentmpfiles/0.1.3