CVE-2016-9604

2016-12-3100:00:00

ubuntu.com

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

25.3%

JSON

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.

Notes

Author	Note
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

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchlinux< 3.13.0-132.181UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-79.100UNKNOWN
ubuntu17.04noarchlinux< 4.10.0-22.24UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1018.27UNKNOWN
ubuntu16.04noarchlinux-gke< 4.4.0-1014.14UNKNOWN
ubuntu16.04noarchlinux-hwe< 4.10.0-27.30~16.04.2UNKNOWN
ubuntu16.04noarchlinux-hwe-edge< 4.10.0-27.30~16.04.2UNKNOWN
ubuntu14.04noarchlinux-lts-xenial< 4.4.0-79.100~14.04.1UNKNOWN
ubuntu16.04noarchlinux-raspi2< 4.4.0-1057.64UNKNOWN
ubuntu17.04noarchlinux-raspi2< 4.10.0-1006.8UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	14.04	noarch	linux	< 3.13.0-132.181	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-79.100	UNKNOWN
ubuntu	17.04	noarch	linux	< 4.10.0-22.24	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1018.27	UNKNOWN
ubuntu	16.04	noarch	linux-gke	< 4.4.0-1014.14	UNKNOWN
ubuntu	16.04	noarch	linux-hwe	< 4.10.0-27.30~16.04.2	UNKNOWN
ubuntu	16.04	noarch	linux-hwe-edge	< 4.10.0-27.30~16.04.2	UNKNOWN
ubuntu	14.04	noarch	linux-lts-xenial	< 4.4.0-79.100~14.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-raspi2	< 4.4.0-1057.64	UNKNOWN
ubuntu	17.04	noarch	linux-raspi2	< 4.10.0-1006.8	UNKNOWN