nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.
http://www.debian.org/security/2016/dsa-3607
http://www.openwall.com/lists/oss-security/2016/06/25/2
http://www.securityfocus.com/bid/91456
http://www.ubuntu.com/usn/USN-3053-1
http://www.ubuntu.com/usn/USN-3070-1
http://www.ubuntu.com/usn/USN-3070-2
http://www.ubuntu.com/usn/USN-3070-3
http://www.ubuntu.com/usn/USN-3070-4
https://bugzilla.redhat.com/show_bug.cgi?id=1350845
https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4
Source: MITRE
Published: 2016-06-29
Updated: 2016-11-28
Type: CWE-284
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM