CVE-2016-9604

EUVD-2016-10408
It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.4 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
redhatCNA
4.4 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
𝑥
≤ 4.11
linuxlinux_kernel
4.11:rc1
linuxlinux_kernel
4.11:rc2
linuxlinux_kernel
4.11:rc3
linuxlinux_kernel
4.11:rc4
linuxlinux_kernel
4.11:rc5
linuxlinux_kernel
4.11:rc6
linuxlinux_kernel
4.11:rc7
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
artful
not-affected
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
not-affected
precise
ignored
trusty
Fixed 3.13.0-132.181
released
xenial
Fixed 4.4.0-79.100
released
yakkety
ignored
zesty
Fixed 4.10.0-22.24
released
linux-armadaxp
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-aws
artful
dne
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
not-affected
precise
dne
trusty
not-affected
xenial
Fixed 4.4.0-1018.27
released
yakkety
dne
zesty
dne
linux-aws-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-aws-5.4
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-aws-fips
bionic
dne
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
ignored
linux-aws-hwe
bionic
dne
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
not-affected
linux-azure
artful
dne
bionic
ignored
focal
not-affected
jammy
not-affected
noble
not-affected
trusty
not-affected
xenial
not-affected
yakkety
dne
zesty
dne
linux-azure-4.15
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-azure-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-azure-5.4
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-azure-fde
bionic
dne
focal
ignored
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-azure-fde-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-azure-fips
bionic
dne
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
ignored
linux-bluefield
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-euclid
artful
dne
bionic
dne
trusty
dne
xenial
ignored
zesty
dne
linux-fips
bionic
dne
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-flo
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
ignored
yakkety
ignored
zesty
dne
linux-gcp
artful
dne
bionic
ignored
focal
not-affected
jammy
not-affected
noble
not-affected
trusty
dne
xenial
not-affected
yakkety
dne
zesty
dne
linux-gcp-4.15
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-gcp-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-gcp-5.4
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-gcp-fips
bionic
dne
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
ignored
linux-gke
artful
dne
bionic
dne
focal
ignored
jammy
not-affected
noble
not-affected
precise
dne
trusty
dne
xenial
Fixed 4.4.0-1014.14
released
yakkety
dne
zesty
dne
linux-gkeop
bionic
dne
focal
not-affected
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-gkeop-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-goldfish
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
ignored
yakkety
ignored
zesty
ignored
linux-grouper
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-hwe
artful
dne
bionic
ignored
focal
dne
jammy
dne
noble
dne
precise
dne
trusty
dne
xenial
Fixed 4.10.0-32.36~16.04.1
released
yakkety
dne
zesty
dne
linux-hwe-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-hwe-5.4
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-hwe-6.8
bionic
dne
focal
dne
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-hwe-edge
artful
dne
bionic
ignored
focal
dne
jammy
dne
noble
dne
precise
dne
trusty
dne
xenial
Fixed 4.10.0-27.30~16.04.2
released
yakkety
dne
zesty
dne
linux-ibm
bionic
dne
focal
not-affected
jammy
not-affected
noble
not-affected
trusty
dne
xenial
dne
linux-ibm-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-ibm-5.4
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-intel
bionic
dne
focal
dne
jammy
dne
noble
not-affected
trusty
dne
xenial
dne
linux-intel-iot-realtime
bionic
dne
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-intel-iotg
bionic
dne
focal
dne
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-intel-iotg-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-iot
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-kvm
artful
dne
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
dne
trusty
dne
xenial
not-affected
zesty
dne
linux-linaro-omap
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-linaro-shared
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-linaro-vexpress
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lowlatency
bionic
dne
focal
dne
jammy
not-affected
noble
not-affected
trusty
dne
xenial
dne
linux-lowlatency-hwe-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-lowlatency-hwe-6.8
bionic
dne
focal
dne
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-lts-quantal
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-raring
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-saucy
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-trusty
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-utopic
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-vivid
artful
dne
bionic
dne
precise
dne
trusty
ignored
xenial
dne
yakkety
dne
zesty
dne
linux-lts-wily
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-lts-xenial
artful
dne
bionic
dne
focal
dne
jammy
dne
noble
dne
precise
dne
trusty
Fixed 4.4.0-79.100~14.04.1
released
xenial
dne
yakkety
dne
zesty
dne
linux-maguro
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-mako
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
ignored
yakkety
ignored
zesty
dne
linux-manta
artful
dne
bionic
dne
precise
dne
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-nvidia
bionic
dne
focal
dne
jammy
not-affected
noble
not-affected
trusty
dne
xenial
dne
linux-nvidia-6.5
bionic
dne
focal
dne
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-nvidia-6.8
bionic
dne
focal
dne
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-nvidia-lowlatency
bionic
dne
focal
dne
jammy
dne
noble
not-affected
trusty
dne
xenial
dne
linux-oem
artful
dne
bionic
ignored
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
not-affected
zesty
dne
linux-oem-6.8
bionic
dne
focal
dne
jammy
dne
noble
not-affected
trusty
dne
xenial
dne
linux-oracle
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
not-affected
trusty
dne
xenial
not-affected
linux-oracle-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-oracle-5.4
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-qcm-msm
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-raspi
bionic
dne
focal
not-affected
jammy
not-affected
noble
not-affected
trusty
dne
xenial
dne
linux-raspi-5.4
bionic
not-affected
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-raspi-realtime
bionic
dne
focal
dne
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-raspi2
artful
not-affected
bionic
not-affected
focal
ignored
jammy
dne
noble
dne
precise
dne
trusty
dne
xenial
Fixed 4.4.0-1057.64
released
yakkety
ignored
zesty
Fixed 4.10.0-1006.8
released
linux-realtime
bionic
dne
focal
dne
jammy
ignored
noble
dne
trusty
dne
xenial
dne
linux-riscv
bionic
dne
focal
ignored
jammy
ignored
noble
not-affected
trusty
dne
xenial
dne
linux-riscv-5.15
bionic
dne
focal
not-affected
jammy
dne
noble
dne
trusty
dne
xenial
dne
linux-riscv-6.8
bionic
dne
focal
dne
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
linux-snapdragon
artful
not-affected
bionic
not-affected
focal
dne
jammy
dne
noble
dne
precise
dne
trusty
dne
xenial
Fixed 4.4.0-1059.63
released
yakkety
Fixed 4.4.0-1059.63
released
zesty
Fixed 4.4.0-1059.63
released
linux-ti-omap4
artful
dne
bionic
dne
precise
ignored
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
linux-xilinx-zynqmp
bionic
dne
focal
not-affected
jammy
not-affected
noble
dne
trusty
dne
xenial
dne
Common Weakness Enumeration
References
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html
http://www.securityfocus.com/bid/102135
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:2669
https://bugzilla.novell.com/show_bug.cgi?id=1035576
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html
http://www.securityfocus.com/bid/102135
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:2669
https://bugzilla.novell.com/show_bug.cgi?id=1035576
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f