CVE-2017-2636
Published: 7 March 2017
Race condition in drivers/tty/n_hdlc.c in the Linux kernel through 4.10.1 allows local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline.
From the Ubuntu security team
Alexander Popov discovered that the N_HDLC line discipline implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges.
Priority
CVSS 3 base score: 7.8
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-19.21)
|
precise |
Released
(3.2.0-124.167)
|
|
trusty |
Released
(3.13.0-112.159)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Released
(4.4.0-66.87)
|
|
yakkety |
Released
(4.8.0-41.44)
|
|
zesty |
Not vulnerable
(4.10.0-13.15)
|
|
linux-armadaxp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was released [3.2.0-1685.112])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-aws Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Released
(4.4.0-1007.16)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-azure Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-euclid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Not vulnerable
(4.4.0-9019.20)
|
|
zesty |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Released
(4.4.0-1005.6)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Ignored
(abandoned)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Released
(4.8.0-41.44~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Released
(4.8.0-41.44~16.04.1)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
zesty |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [end-of-life])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-raring Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [end-of-life])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [end-of-life])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Released
(3.13.0-112.159~precise1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [out of standard support])
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [was needed now end-of-life])
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [out of standard support])
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Released
(4.4.0-66.87~14.04.1)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-oem Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Not vulnerable
(4.13.0-1008.9)
|
|
zesty |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-1004.6)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Released
(4.4.0-1046.53)
|
|
yakkety |
Released
(4.8.0-1028.31)
|
|
zesty |
Not vulnerable
(4.10.0-1001.3)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.4.0-1050.54)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Released
(4.4.0-1050.54)
|
|
yakkety |
Released
(4.4.0-1050.54)
|
|
zesty |
Not vulnerable
(4.4.0-1050.54)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was released [3.2.0-1502.129])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc2)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
Notes
Author | Note |
---|---|
jdstrand | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
tyhicks | all of our kernels are affected as CONFIG_N_HDLC=m is set in all releases |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2636
- http://www.openwall.com/lists/oss-security/2017/03/07/6
- https://ubuntu.com/security/notices/USN-3219-1
- https://ubuntu.com/security/notices/USN-3218-1
- https://ubuntu.com/security/notices/USN-3219-2
- https://ubuntu.com/security/notices/USN-3220-1
- https://ubuntu.com/security/notices/USN-3220-2
- https://ubuntu.com/security/notices/USN-3221-1
- https://ubuntu.com/security/notices/USN-3221-2
- https://ubuntu.com/security/notices/USN-3220-3
- NVD
- Launchpad
- Debian