CVE-2017-6964
Published: 27 March 2017
dmcrypt-get-device, as shipped in the eject package of Debian and Ubuntu, does not check the return value of the (1) setuid or (2) setgid function, which might cause dmcrypt-get-device to execute code, which was intended to run as an unprivileged user, as root. This affects eject through 2.1.5+deb1+cvs20081104-13.1 on Debian, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.10.1 on Ubuntu 16.10, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.16.04.1 on Ubuntu 16.04 LTS, eject before 2.1.5+deb1+cvs20081104-13.1ubuntu0.14.04.1 on Ubuntu 14.04 LTS, and eject before 2.1.5+deb1+cvs20081104-9ubuntu0.1 on Ubuntu 12.04 LTS.
Notes
| Author | Note |
|---|---|
| tyhicks | The dmcrypt-get-device binary is built from a patch the Debian/Ubuntu carry. It isn't likely to affect other distros. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
eject Launchpad, Ubuntu, Debian |
upstream |
Needed
|
| precise |
Released
(2.1.5+deb1+cvs20081104-9ubuntu0.1)
|
|
| trusty |
Released
(2.1.5+deb1+cvs20081104-13.1ubuntu0.14.04.1)
|
|
| xenial |
Released
(2.1.5+deb1+cvs20081104-13.1ubuntu0.16.04.1)
|
|
| yakkety |
Released
(2.1.5+deb1+cvs20081104-13.1ubuntu0.16.10.1)
|
|
| zesty |
Released
(2.1.5+deb1+cvs20081104-13.2)
|
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 |