Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2016-9604 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.4 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

CNA: [email protected]CVSS-B:4.4 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1842	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669	CVE	Third Party Advisory
https://bugzilla.novell.com/show_bug.cgi?id=1035576	CVE	Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604	CVE	Issue TrackingThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f	CVE	PatchVendor Advisory
http://www.securityfocus.com/bid/102135	CVE	Third Party AdvisoryVDB Entry
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1842	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669	[email protected]	Third Party Advisory
https://bugzilla.novell.com/show_bug.cgi?id=1035576	[email protected]	Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604	[email protected]	Issue TrackingThird Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f	[email protected]	PatchVendor Advisory
http://www.securityfocus.com/bid/102135	[email protected]	Third Party AdvisoryVDB Entry

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-347	Improper Verification of Cryptographic Signature	[email protected]
CWE-732	Incorrect Permission Assignment for Critical Resource	[email protected]

Affected Products

Product	Versions
linux linux kernel	<= 4.11 4.11 rc1 4.11 rc2 4.11 rc3 4.11 rc4
CPE cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:4.11:rc1:::::: cpe:2.3:o:linux:linux_kernel:4.11:rc2:::::: cpe:2.3:o:linux:linux_kernel:4.11:rc3:::::: cpe:2.3:o:linux:linux_kernel:4.11:rc4:::::: cpe:2.3:o:linux:linux_kernel:4.11:rc5:::::: cpe:2.3:o:linux:linux_kernel:4.11:rc6:::::: cpe:2.3:o:linux:linux_kernel:4.11:rc7:::::: Remediation No remediation found in references.

Product

Versions

linux linux kernel

<= 4.11

4.11 rc1

4.11 rc2

4.11 rc3

4.11 rc4

CPE

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.11:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.11:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Mar 11, 2020	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Sep 11, 2018	Initial Analysis	[email protected]
Jul 13, 2018	CVE Modified	[email protected]