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CVE-2016-7039

Published: 10 October 2016

The IP stack in the Linux kernel through 4.8.2 allows remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for large crafted packets, as demonstrated by packets that contain only VLAN headers, a related issue to CVE-2016-8666.

From the Ubuntu Security Team

Vladim√≠r BeneŇ° discovered an unbounded recursion in the VLAN and TEB Generic Receive Offload (GRO) processing implementations in the Linux kernel, A remote attacker could use this to cause a stack corruption, leading to a denial of service (system crash).

Notes

AuthorNote
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
sbeattie
third break-fix may get split out into a separate CVE.

Priority

High

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
linux-armadaxp
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
precise Not vulnerable

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
xenial Not vulnerable
(4.4.0-1001.10)
yakkety Does not exist

upstream
Released (4.9~rc4)
linux-flo
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Not vulnerable

yakkety Not vulnerable

upstream
Released (4.9~rc4)
linux-gke
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

upstream
Released (4.9~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Not vulnerable

yakkety Not vulnerable

upstream
Released (4.9~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

upstream
Released (4.9~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

upstream
Released (4.9~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
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

xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected)
xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (4.4.0-42.62~14.04.1)
xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-mako
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Not vulnerable

yakkety Not vulnerable

upstream
Released (4.9~rc4)
linux-manta
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

upstream
Released (4.9~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1027.33)
yakkety Not vulnerable
(4.8.0-1013.15)
upstream
Released (4.9~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1030.33)
yakkety
Released (4.4.0-1032.36)
upstream
Released (4.9~rc4)
linux
Launchpad, Ubuntu, Debian
upstream
Released (4.9~rc4)
precise Not vulnerable

trusty Not vulnerable

xenial
Released (4.4.0-42.62)
yakkety Not vulnerable
(4.8.0-22.24)
Patches:
Introduced by

9b174d88c257150562b0101fcc6cb6c3cb74275c

Fixed by fcd91dd449867c6bfe56a81cabba76b829fd05cd
Introduced by

66e5133f19e901a044fa5eaeeb6ecff4545839e5

Fixed by fcd91dd449867c6bfe56a81cabba76b829fd05cd
linux-linaro-omap
Launchpad, Ubuntu, Debian
upstream
Released (4.9~rc4)
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
upstream
Released (4.9~rc4)
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
upstream
Released (4.9~rc4)
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
upstream
Released (4.9~rc4)
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (4.9~rc4)
precise Not vulnerable

trusty Does not exist

xenial Does not exist

yakkety Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H