Executive Summary

Summary
Title Linux kernel vulnerability
Informations
Name USN-3819-1 First vendor Publication 2018-11-14
Vendor Ubuntu Last vendor Modification 2018-11-14
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:S/C:C/I:C/A:C)
Cvss Base Score 6.8 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.1 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10

Summary:

The system could be made to crash or run programs as an administrator.

Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

Felix Wilhelm discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10:
linux-image-4.18.0-1003-gcp 4.18.0-1003.4
linux-image-4.18.0-1004-aws 4.18.0-1004.5
linux-image-4.18.0-1004-kvm 4.18.0-1004.4
linux-image-4.18.0-1006-raspi2 4.18.0-1006.8
linux-image-4.18.0-11-generic 4.18.0-11.12
linux-image-4.18.0-11-generic-lpae 4.18.0-11.12
linux-image-4.18.0-11-lowlatency 4.18.0-11.12
linux-image-4.18.0-11-snapdragon 4.18.0-11.12
linux-image-aws 4.18.0.1004.4
linux-image-gcp 4.18.0.1003.3
linux-image-generic 4.18.0.11.12
linux-image-generic-lpae 4.18.0.11.12
linux-image-gke 4.18.0.1003.3
linux-image-kvm 4.18.0.1004.4
linux-image-lowlatency 4.18.0.11.12
linux-image-raspi2 4.18.0.1006.3
linux-image-snapdragon 4.18.0.11.12

After a standard system update you need to reboot your computer to make all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.

References:
https://usn.ubuntu.com/usn/usn-3819-1
CVE-2018-15471

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.18.0-11.12
https://launchpad.net/ubuntu/+source/linux-aws/4.18.0-1004.5
https://launchpad.net/ubuntu/+source/linux-gcp/4.18.0-1003.4
https://launchpad.net/ubuntu/+source/linux-kvm/4.18.0-1004.4
https://launchpad.net/ubuntu/+source/linux-raspi2/4.18.0-1006.8

Original Source

Url : http://www.ubuntu.com/usn/USN-3819-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17
Os 4
Os 3147
Os 154

Nessus® Vulnerability Scanner

Date Description
2019-01-03 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-8422d94975.nasl - Type : ACT_GATHER_INFO
2018-10-10 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4313.nasl - Type : ACT_GATHER_INFO
2018-08-24 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-79d7c3d2df.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2018-11-15 05:17:25
  • First insertion