CVE-2016-6828

The tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
𝑥
≤ 4.7.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
sid
6.11.5-1
fixed
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
precise
Fixed 3.2.0-111.153
released
trusty
Fixed 3.13.0-98.145
released
xenial
Fixed 4.4.0-42.62
released
yakkety
not-affected
zesty
not-affected
linux-armadaxp
precise
Fixed 3.2.0-1674.100
released
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-aws
precise
dne
trusty
not-affected
xenial
not-affected
yakkety
dne
zesty
dne
linux-flo
precise
dne
trusty
dne
xenial
ignored
yakkety
ignored
zesty
dne
linux-gke
precise
dne
trusty
dne
xenial
not-affected
yakkety
dne
zesty
dne
linux-goldfish
precise
dne
trusty
dne
xenial
ignored
yakkety
ignored
zesty
ignored
linux-grouper
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-hwe
precise
dne
trusty
dne
xenial
not-affected
yakkety
dne
zesty
dne
linux-hwe-edge
precise
dne
trusty
dne
xenial
not-affected
yakkety
dne
zesty
dne
linux-linaro-omap
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-linaro-shared
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-linaro-vexpress
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-quantal
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-raring
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-saucy
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-trusty
precise
Fixed 3.13.0-98.145~precise1
released
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-utopic
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-vivid
precise
dne
trusty
Fixed 3.19.0-71.79~14.04.1
released
xenial
dne
yakkety
dne
zesty
dne
linux-lts-wily
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-xenial
precise
dne
trusty
Fixed 4.4.0-42.62~14.04.1
released
xenial
dne
yakkety
dne
zesty
dne
linux-maguro
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-mako
precise
dne
trusty
dne
xenial
ignored
yakkety
ignored
zesty
dne
linux-manta
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-qcm-msm
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-raspi2
precise
dne
trusty
dne
xenial
Fixed 4.4.0-1027.33
released
yakkety
not-affected
zesty
not-affected
linux-snapdragon
precise
dne
trusty
dne
xenial
Fixed 4.4.0-1030.33
released
yakkety
not-affected
zesty
not-affected
linux-ti-omap4
precise
Fixed 3.2.0-1489.116
released
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
kernel-default
suse enterprise desktop 15
4.12.14-23.1
fixed
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise sap 15
4.12.14-23.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 15
4.12.14-23.1
fixed
kernel-default-base
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
kernel-default-man
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
kernel-docs
suse enterprise desktop 15
4.12.14-23.1
fixed
suse enterprise sap 15
4.12.14-23.1
fixed
suse enterprise server 15
4.12.14-23.1
fixed
kernel-ec2
suse enterprise sap 12
3.12.67-60.64.18.1
fixed
suse enterprise sap 12 SP3
3.12.67-60.64.18.1
fixed
suse enterprise sap 12 SP4
3.12.67-60.64.18.1
fixed
suse enterprise sap 12 SP5
3.12.67-60.64.18.1
fixed
suse enterprise server 12
3.12.67-60.64.18.1
fixed
suse enterprise server 12 SP3
3.12.67-60.64.18.1
fixed
suse enterprise server 12 SP4
3.12.67-60.64.18.1
fixed
suse enterprise server 12 SP5
3.12.67-60.64.18.1
fixed
kernel-ec2-extra
suse enterprise sap 12
3.12.67-60.64.18.1
fixed
suse enterprise sap 12 SP3
3.12.67-60.64.18.1
fixed
suse enterprise sap 12 SP4
3.12.67-60.64.18.1
fixed
suse enterprise sap 12 SP5
3.12.67-60.64.18.1
fixed
suse enterprise server 12
3.12.67-60.64.18.1
fixed
suse enterprise server 12 SP3
3.12.67-60.64.18.1
fixed
suse enterprise server 12 SP4
3.12.67-60.64.18.1
fixed
suse enterprise server 12 SP5
3.12.67-60.64.18.1
fixed
kernel-macros
suse enterprise desktop 15
4.12.14-23.1
fixed
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise sap 15
4.12.14-23.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 15
4.12.14-23.1
fixed
kernel-obs-build
suse enterprise desktop 15
4.12.14-23.1
fixed
suse enterprise sap 15
4.12.14-23.1
fixed
suse enterprise server 15
4.12.14-23.1
fixed
kernel-source
suse enterprise desktop 15
4.12.14-23.1
fixed
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise sap 15
4.12.14-23.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 15
4.12.14-23.1
fixed
kernel-syms
suse enterprise desktop 15
4.12.14-23.1
fixed
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise sap 15
4.12.14-23.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 15
4.12.14-23.1
fixed
kernel-vanilla-base
suse enterprise desktop 15
4.12.14-23.1
fixed
suse enterprise sap 15
4.12.14-23.1
fixed
suse enterprise server 15
4.12.14-23.1
fixed
kernel-xen
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
kernel-xen-base
suse enterprise sap 12 SP1
3.12.67-60.64.18.1
fixed
suse enterprise server 12
3.12.61-52.66.1
fixed
suse enterprise server 12 SP1
3.12.67-60.64.18.1
fixed
kgraft-patch-3_12_61-52_66-default-1
suse enterprise server 12
2.1
fixed
kgraft-patch-3_12_61-52_66-xen-1
suse enterprise server 12
2.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
kernel
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-abi-whitelists
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-bootwrapper
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-debug
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-debug-devel
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-devel
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-doc
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-firmware
RHEL 6
0:2.6.32-642.13.1.el6
fixed
kernel-headers
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-kdump
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-kdump-devel
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-rt
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-debug
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-debug-devel
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-debug-kvm
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-devel
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-doc
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-kvm
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-trace
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-trace-devel
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-rt-trace-kvm
RHEL 7
0:3.10.0-514.6.1.rt56.429.el7
fixed
kernel-tools
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-tools-libs
RHEL 7
0:3.10.0-514.6.1.el7
fixed
kernel-tools-libs-devel
RHEL 7
0:3.10.0-514.6.1.el7
fixed
perf
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
python-perf
RHEL 6
0:2.6.32-642.13.1.el6
fixed
RHEL 7
0:3.10.0-514.6.1.el7
fixed
Common Weakness Enumeration
References
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4
http://rhn.redhat.com/errata/RHSA-2017-0036.html
http://rhn.redhat.com/errata/RHSA-2017-0086.html
http://rhn.redhat.com/errata/RHSA-2017-0091.html
http://rhn.redhat.com/errata/RHSA-2017-0113.html
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5
http://www.openwall.com/lists/oss-security/2016/08/15/1
http://www.securityfocus.com/bid/92452
https://bugzilla.redhat.com/show_bug.cgi?id=1367091
https://github.com/torvalds/linux/commit/bb1fceca22492109be12640d49f5ea5a544c6bb4
https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.html
https://source.android.com/security/bulletin/2016-11-01.html
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4
http://rhn.redhat.com/errata/RHSA-2017-0036.html
http://rhn.redhat.com/errata/RHSA-2017-0086.html
http://rhn.redhat.com/errata/RHSA-2017-0091.html
http://rhn.redhat.com/errata/RHSA-2017-0113.html
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5
http://www.openwall.com/lists/oss-security/2016/08/15/1
http://www.securityfocus.com/bid/92452
https://bugzilla.redhat.com/show_bug.cgi?id=1367091
https://github.com/torvalds/linux/commit/bb1fceca22492109be12640d49f5ea5a544c6bb4
https://marcograss.github.io/security/linux/2016/08/18/cve-2016-6828-linux-kernel-tcp-uaf.html
https://source.android.com/security/bulletin/2016-11-01.html