4.4
MEDIUM
CVE-2016-9604
Linux Kernel Information Disclosure and Keystorage Bypass Vulnerability in Cisco Systems
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.

INFO

Published Date :

July 11, 2018, 1:29 p.m.

Last Modified :

Nov. 7, 2023, 2:37 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2016-9604 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2016-9604.

URL Resource
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html Third Party Advisory
http://www.securityfocus.com/bid/102135 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1842 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669 Third Party Advisory
https://bugzilla.novell.com/show_bug.cgi?id=1035576 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604 Issue Tracking Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-9604 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-9604 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Removed CVSS V2 Red Hat, Inc. (AV:L/AC:H/Au:N/C:N/I:P/A:N)
  • CVE Modified by [email protected]

    Mar. 11, 2020

    Action Type Old Value New Value
    Added CVSS V2 Red Hat, Inc. (AV:L/AC:H/Au:N/C:N/I:P/A:N)
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
    Added CWE Red Hat, Inc. CWE-732
  • Initial Analysis by [email protected]

    Sep. 11, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type https://access.redhat.com/errata/RHSA-2017:1842 No Types Assigned https://access.redhat.com/errata/RHSA-2017:1842 Third Party Advisory
    Changed Reference Type https://bugzilla.novell.com/show_bug.cgi?id=1035576 No Types Assigned https://bugzilla.novell.com/show_bug.cgi?id=1035576 Issue Tracking, Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2017:2669 No Types Assigned https://access.redhat.com/errata/RHSA-2017:2669 Third Party Advisory
    Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f Patch, Vendor Advisory
    Changed Reference Type http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html No Types Assigned http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/102135 No Types Assigned http://www.securityfocus.com/bid/102135 Third Party Advisory, VDB Entry
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604 Issue Tracking, Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2017:2077 No Types Assigned https://access.redhat.com/errata/RHSA-2017:2077 Third Party Advisory
    Added CWE CWE-347
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.11 *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:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 13, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2017:2669 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2017:2077 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2017:1842 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/102135 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-9604 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.01%

score

0.24313

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability