CVE-2017-7979
Published: 19 April 2017
The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.
From the Ubuntu Security Team
Fabian Grünbichler discovered that the Packet action API implementation in the Linux kernel improperly handled uninitialized data. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
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 |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Not vulnerable
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Released
(4.10.0-22.24)
|
|
Patches: Introduced by 1045ba77a5962a22bce7777678ef46714107ea63 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-aws Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Not vulnerable
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-azure Launchpad, Ubuntu, Debian |
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-euclid Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
(4.10.0-27.30~16.04.2)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
(4.10.0-27.30~16.04.2)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-kvm Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
zesty |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-raring Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was not-affected)
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Not vulnerable
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Released
(4.10.0-1006.8)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Not vulnerable
|
|
yakkety |
Not vulnerable
|
|
zesty |
Not vulnerable
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11~rc8)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
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 |
References
- http://marc.info/?l=linux-netdev&m=149200742616349
- http://marc.info/?l=linux-netdev&m=149200746116365
- http://marc.info/?l=linux-netdev&m=149200746116366
- http://marc.info/?l=linux-netdev&m=149251041420194
- http://marc.info/?l=linux-netdev&m=149251041420195
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368
- https://bugzilla.proxmox.com/show_bug.cgi?id=1351
- http://marc.info/?l=linux-netdev&m=149272038713473&w=2
- https://ubuntu.com/security/notices/USN-3314-1
- https://www.cve.org/CVERecord?id=CVE-2017-7979
- NVD
- Launchpad
- Debian