gzip before 1.3 in Solaris 8, when called with the -f or -force flags, will change the permissions of files that are hard linked to the target files, which allows local users to view or modify these files.

References

• https://nvd.nist.gov/vuln/detail/CVE-2004-1349
• https://exchange.xforce.ibmcloud.com/vulnerabilities/17577
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1654
• http://secunia.com/advisories/12744
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-57600-1&searchclause=security
• http://www.kb.cert.org/vuls/id/635998
• http://www.securityfocus.com/bid/11318