CVE-2011-3145 in mount.ecrpytfs_private

Summary

When mount.ecrpytfs_private before version 87-0ubuntu1.2 calls setreuid() it doesn't also set the effective group id. So when it creates the new version, mtab.tmp, it's created with the group id of the user running mount.ecryptfs_private.

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• Reservation: 08/16/2011
• Moderation: VulDB entry created
• Entries: VDB-133896 (1)
• CPE: ready
• CWE: CWE-254 (Confirmed)
• CVSS: 7.8
• EPSS: 0.00234
• Activities: Very Low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2011-3145
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-3145
• CVE Details: https://www.cvedetails.com/cve/CVE-2011-3145/