7.8
HIGH CVSS 3.0
CVE-2018-18653
Ubuntu Linux Bootloader Secure Boot Bypass Kernel Module Execution Vulnerability
Description

The Linux kernel, as used in Ubuntu 18.10 and when booted with UEFI Secure Boot enabled, allows privileged local users to bypass intended Secure Boot restrictions and execute untrusted code by loading arbitrary kernel modules. This occurs because a modified kernel/module.c, in conjunction with certain configuration options, leads to mishandling of the result of signature verification.

INFO

Published Date :

Oct. 26, 2018, 12:29 a.m.

Last Modified :

Nov. 21, 2024, 3:56 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2018-18653 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 Canonical ubuntu_linux
2 Canonical ubuntu_linux
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.0 HIGH [email protected]
Solution
Follow the instructions below to mitigate the CVE-2018-18653 vulnerability.
Update the affected linux-image-4.18-aws and / or linux-image-aws packages.
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-2018-18653.

URL Resource
https://launchpad.net/bugs/1798863 Exploit Issue Tracking Vendor Advisory
https://usn.ubuntu.com/3832-1/ Patch Vendor Advisory
https://usn.ubuntu.com/3835-1/ Patch Vendor Advisory
https://launchpad.net/bugs/1798863 Exploit Issue Tracking Vendor Advisory
https://usn.ubuntu.com/3832-1/ Patch Vendor Advisory
https://usn.ubuntu.com/3835-1/ Patch Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-18653 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-18653 weaknesses.

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-2018-18653 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-18653 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://launchpad.net/bugs/1798863
    Added Reference https://usn.ubuntu.com/3832-1/
    Added Reference https://usn.ubuntu.com/3835-1/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-284 CWE-347 CWE-362 CWE-347
  • Initial Analysis by [email protected]

    Jan. 28, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://usn.ubuntu.com/3835-1/ No Types Assigned https://usn.ubuntu.com/3835-1/ Patch, Vendor Advisory
    Changed Reference Type https://launchpad.net/bugs/1798863 No Types Assigned https://launchpad.net/bugs/1798863 Exploit, Issue Tracking, Vendor Advisory
    Changed Reference Type https://usn.ubuntu.com/3832-1/ No Types Assigned https://usn.ubuntu.com/3832-1/ Patch, Vendor Advisory
    Added CWE CWE-284
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 04, 2018

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3835-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 30, 2018

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3832-1/ [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.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.2
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.02 }} -0.31%

score

0.03732

percentile