CVE-2017-0358
Published: 1 February 2017
Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not scrub the environment before executing modprobe with elevated privileges. A local user can take advantage of this flaw for local root privilege escalation.
Notes
| Author | Note |
|---|---|
| tyhicks | 14.04 and 12.04 are not affected since ntfs-3g is not installed setuid-root. While there is some debconf support for setting ntfs-3g as setuid-root in the packaging, libfuse refuses to cooperate when it detects that it is running in a setuid environment. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ntfs-3g Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
(ntfs-3g not installed with setuid bit)
|
| trusty |
Not vulnerable
(ntfs-3g not installed with setuid bit)
|
|
| upstream |
Released
(1:2016.2.22AR.1-4)
|
|
| xenial |
Released
(1:2015.3.14AR.1-1ubuntu0.1)
|
|
| yakkety |
Released
(1:2016.2.22AR.1-3ubuntu0.1)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |