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CVE-2016-8658

Published: 16 October 2016

Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.7.5 allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket.

From the Ubuntu Security Team

Daxing Guo discovered a stack-based buffer overflow in the Broadcom IEEE802.11n FullMAC driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain privileges.

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

Priority

Medium

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty
Released (3.13.0-103.150)
xenial
Released (4.4.0-51.72)
yakkety Not vulnerable
(4.8.0-14.15)
upstream
Released (4.8~rc7)
Patches:
Introduced by

1a87334239757b69eb9885979c32bbf871b3ec88

Fixed by ded89912156b1a47d940a0c954c43afbabd0c42c
linux-armadaxp
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
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 (4.8~rc7)
linux-flo
Launchpad, Ubuntu, Debian
precise Does not exist

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

yakkety Not vulnerable

upstream
Released (4.8~rc7)
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 (4.8~rc7)
linux-goldfish
Launchpad, Ubuntu, Debian
precise Does not exist

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

yakkety Not vulnerable

upstream
Released (4.8~rc7)
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 (4.8~rc7)
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 (4.8~rc7)
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 (4.8~rc7)
linux-linaro-omap
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
linux-linaro-shared
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
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 (4.8~rc7)
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 (4.8~rc7)
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 (4.8~rc7)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
precise
Released (3.13.0-103.150~precise1)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
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 (4.8~rc7)
linux-lts-vivid
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (3.19.0-75.83~14.04.1)
xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
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 (4.8~rc7)
linux-lts-xenial
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (4.4.0-51.72~14.04.1)
xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
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 (4.8~rc7)
linux-mako
Launchpad, Ubuntu, Debian
precise Does not exist

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

yakkety Not vulnerable

upstream
Released (4.8~rc7)
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 (4.8~rc7)
linux-qcm-msm
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)
linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1038.45)
yakkety Not vulnerable
(4.8.0-1012.14)
upstream
Released (4.8~rc7)
linux-snapdragon
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial
Released (4.4.0-1042.46)
yakkety
Released (4.4.0-1046.50)
upstream
Released (4.8~rc7)
linux-ti-omap4
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist

xenial Does not exist

yakkety Does not exist

upstream
Released (4.8~rc7)

Severity score breakdown

Parameter Value
Base score 6.1
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H