CVE-2017-2616
Published: 22 February 2017
A race condition was found in util-linux before 2.32.1 in the way su handled the management of child processes. A local authenticated attacker could use this flaw to kill other processes with root privileges under specific conditions.
Notes
| Author | Note |
|---|---|
| sbeattie | ubuntu uses su from shadow package, not util-linux up until (2.32-0.2) |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
shadow Launchpad, Ubuntu, Debian |
artful |
Released
(1:4.2-3.2ubuntu2)
|
| bionic |
Released
(1:4.2-3.2ubuntu2)
|
|
| cosmic |
Released
(1:4.2-3.2ubuntu2)
|
|
| disco |
Released
(1:4.2-3.2ubuntu2)
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Released
(1:4.1.5.1-1ubuntu9.4)
|
|
| upstream |
Released
(1:4.4-4)
|
|
| xenial |
Released
(1:4.2-3.1ubuntu5.2)
|
|
| yakkety |
Released
(1:4.2-3.2ubuntu1.16.10.1)
|
|
| zesty |
Released
(1:4.2-3.2ubuntu1.17.04.1)
|
|
|
Patches: upstream: https://github.com/shadow-maint/shadow/commit/08fd4b69e84364677a10e519ccb25b71710ee686 |
||
|
util-linux Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Not vulnerable
(2.31.1-0.4ubuntu3.3)
|
|
| cosmic |
Not vulnerable
(2.31.1-0.4ubuntu3.3)
|
|
| disco |
Not vulnerable
(2.31.1-0.4ubuntu3.3)
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Not vulnerable
(binary not built)
|
|
| upstream |
Released
(2.29.2-1)
|
|
| xenial |
Not vulnerable
(binary not built)
|
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Ignored
(end of life)
|
|
|
Patches: upstream: https://github.com/karelzak/util-linux/commit/dffab154d29a288aa171ff50263ecc8f2e14a891 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.7 |
| Attack vector | Local |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |