CVE-2011-3145 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/558

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8