CVE-2018-1000028

Public on 2018-02-20
Modified on 2018-02-21
Description
Linux kernel version after commit bdcf0a423ea1 - 4.15-rc4+, 4.14.8+, 4.9.76+, 4.4.111+ contains a Incorrect Access Control vulnerability in NFS server (nfsd) that can result in remote users reading or writing files they should not be able to via NFS. This attack appear to be exploitable via NFS server must export a filesystem with the "rootsquash" options enabled. This vulnerability appears to have been fixed in after commit 1995266727fa.
Severity
Medium
CVSS v3 Base Score
7.4
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 kernel 2018-02-20 21:23 ALAS2-2018-956
Amazon Linux 1 kernel 2018-02-20 21:20 ALAS-2018-956

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD CVSSv2 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N
NVD CVSSv3 7.4 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N