CVE-2016-1572 Information

Description

mount.ecryptfs_private.c in eCryptfs-utils does not validate mount destination filesystem types which allows local users to gain privileges by mounting over a nonstandard filesystem as demonstrated by /proc/$pid.

CVSS Vector

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

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177359.html http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177396.html http://lists.opensuse.org/opensuse-updates/2016-01/msg00091.html http://lists.opensuse.org/opensuse-updates/2016-01/msg00118.html http://lists.opensuse.org/opensuse-updates/2016-02/msg00004.html http://www.debian.org/security/2016/dsa-3450 http://www.openwall.com/lists/oss-security/2016/01/20/6 http://www.securitytracker.com/id/1034791 http://www.ubuntu.com/usn/USN-2876-1 https://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/870 https://bugs.launchpad.net/ecryptfs/+bug/1530566

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

8.4