CVE-2017-18188

CVE-2017-18188 describes a local privilege escalation vulnerability in OpenRC opentmpfiles through version 0.1.3. When the fs.protected_hardlinks sysctl is disabled, a local attacker can create a hard link within a directory targeted by "chown -R" to gain ownership of arbitrary files. This vulnerability has a CVSS score of 5.5 (Medium), indicating low attack complexity and local access requirements, with a high impact on confidentiality. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.