CVE-2016-5696

net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.8 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 97%
Affected Products (NVD)
VendorProductVersion
googleandroid
𝑥
≤ 7.0
oraclevm_server
3.3
oraclevm_server
3.4
linuxlinux_kernel
𝑥
≤ 4.6.6
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
6.11.6-1
fixed
trixie
6.11.5-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
precise
Fixed 3.2.0-109.150
released
trusty
Fixed 3.13.0-95.142
released
wily
ignored
xenial
Fixed 4.4.0-36.55
released
yakkety
not-affected
zesty
not-affected
linux-armadaxp
precise
Fixed 3.2.0-1672.98
released
trusty
dne
wily
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
wily
not-affected
xenial
not-affected
yakkety
not-affected
zesty
dne
linux-gke
precise
dne
trusty
dne
xenial
not-affected
yakkety
dne
zesty
dne
linux-goldfish
precise
dne
trusty
dne
wily
ignored
xenial
ignored
yakkety
ignored
zesty
ignored
linux-grouper
precise
dne
trusty
dne
wily
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
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-linaro-shared
precise
ignored
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-linaro-vexpress
precise
ignored
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-quantal
precise
ignored
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-raring
precise
ignored
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-saucy
precise
ignored
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-trusty
precise
Fixed 3.13.0-95.142~precise1
released
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-utopic
precise
dne
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-vivid
precise
dne
trusty
Fixed 3.19.0-68.76~14.04.1
released
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-wily
precise
dne
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-xenial
precise
dne
trusty
Fixed 4.4.0-36.55~14.04.1
released
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-maguro
precise
dne
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-mako
precise
dne
trusty
dne
wily
not-affected
xenial
not-affected
yakkety
not-affected
zesty
dne
linux-manta
precise
dne
trusty
dne
wily
ignored
xenial
dne
yakkety
dne
zesty
dne
linux-qcm-msm
precise
ignored
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
linux-raspi2
precise
dne
trusty
dne
wily
ignored
xenial
Fixed 4.4.0-1021.27
released
yakkety
not-affected
zesty
not-affected
linux-snapdragon
precise
dne
trusty
dne
wily
dne
xenial
Fixed 4.4.0-1024.27
released
yakkety
not-affected
zesty
not-affected
linux-ti-omap4
precise
Fixed 3.2.0-1487.114
released
trusty
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
kernel-default
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-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-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 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-source
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-syms
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
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
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-abi-whitelists
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-bootwrapper
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-debug
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-debug-devel
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-devel
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-doc
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-firmware
RHEL 6
0:2.6.32-642.4.2.el6
fixed
kernel-headers
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-kdump
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-kdump-devel
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-rt
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-debug
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-debug-devel
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-debug-kvm
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-devel
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-doc
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-kvm
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-trace
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-trace-devel
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-rt-trace-kvm
RHEL 7
0:3.10.0-327.28.3.rt56.235.el7
fixed
kernel-tools
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-tools-libs
RHEL 7
0:3.10.0-327.28.3.el7
fixed
kernel-tools-libs-devel
RHEL 7
0:3.10.0-327.28.3.el7
fixed
perf
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
python-perf
RHEL 6
0:2.6.32-642.4.2.el6
fixed
RHEL 7
0:3.10.0-327.28.3.el7
fixed
Common Weakness Enumeration
References
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758
http://rhn.redhat.com/errata/RHSA-2016-1631.html
http://rhn.redhat.com/errata/RHSA-2016-1632.html
http://rhn.redhat.com/errata/RHSA-2016-1633.html
http://rhn.redhat.com/errata/RHSA-2016-1657.html
http://rhn.redhat.com/errata/RHSA-2016-1664.html
http://rhn.redhat.com/errata/RHSA-2016-1814.html
http://rhn.redhat.com/errata/RHSA-2016-1815.html
http://rhn.redhat.com/errata/RHSA-2016-1939.html
http://source.android.com/security/bulletin/2016-10-01.html
http://www.openwall.com/lists/oss-security/2016/07/12/2
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html
http://www.securityfocus.com/bid/91704
http://www.securitytracker.com/id/1036625
http://www.ubuntu.com/usn/USN-3070-1
http://www.ubuntu.com/usn/USN-3070-2
http://www.ubuntu.com/usn/USN-3070-3
http://www.ubuntu.com/usn/USN-3070-4
http://www.ubuntu.com/usn/USN-3071-1
http://www.ubuntu.com/usn/USN-3071-2
http://www.ubuntu.com/usn/USN-3072-1
http://www.ubuntu.com/usn/USN-3072-2
https://bto.bluecoat.com/security-advisory/sa131
https://bugzilla.redhat.com/show_bug.cgi?id=1354708
https://github.com/Gnoxter/mountain_goat
https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758
https://kc.mcafee.com/corporate/index?page=content&id=SB10167
https://security.paloaltonetworks.com/CVE-2016-5696
https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23
https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758
http://rhn.redhat.com/errata/RHSA-2016-1631.html
http://rhn.redhat.com/errata/RHSA-2016-1632.html
http://rhn.redhat.com/errata/RHSA-2016-1633.html
http://rhn.redhat.com/errata/RHSA-2016-1657.html
http://rhn.redhat.com/errata/RHSA-2016-1664.html
http://rhn.redhat.com/errata/RHSA-2016-1814.html
http://rhn.redhat.com/errata/RHSA-2016-1815.html
http://rhn.redhat.com/errata/RHSA-2016-1939.html
http://source.android.com/security/bulletin/2016-10-01.html
http://www.openwall.com/lists/oss-security/2016/07/12/2
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html
http://www.securityfocus.com/bid/91704
http://www.securitytracker.com/id/1036625
http://www.ubuntu.com/usn/USN-3070-1
http://www.ubuntu.com/usn/USN-3070-2
http://www.ubuntu.com/usn/USN-3070-3
http://www.ubuntu.com/usn/USN-3070-4
http://www.ubuntu.com/usn/USN-3071-1
http://www.ubuntu.com/usn/USN-3071-2
http://www.ubuntu.com/usn/USN-3072-1
http://www.ubuntu.com/usn/USN-3072-2
https://bto.bluecoat.com/security-advisory/sa131
https://bugzilla.redhat.com/show_bug.cgi?id=1354708
https://github.com/Gnoxter/mountain_goat
https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758
https://kc.mcafee.com/corporate/index?page=content&id=SB10167
https://security.paloaltonetworks.com/CVE-2016-5696
https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23
https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf