Executive Summary

Summary
Title Linux kernel vulnerability
Informations
Name USN-3846-1 First vendor Publication 2018-12-20
Vendor Ubuntu Last vendor Modification 2018-12-20
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:N/C:P/I:N/A:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
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 expose sensitive information.

Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud 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:

It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory).

Update instructions:

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

Ubuntu 18.10:
linux-image-4.18.0-1005-gcp 4.18.0-1005.6
linux-image-4.18.0-1006-kvm 4.18.0-1006.6
linux-image-4.18.0-1007-aws 4.18.0-1007.9
linux-image-4.18.0-1007-azure 4.18.0-1007.7
linux-image-4.18.0-1008-raspi2 4.18.0-1008.10
linux-image-4.18.0-13-generic 4.18.0-13.14
linux-image-4.18.0-13-generic-lpae 4.18.0-13.14
linux-image-4.18.0-13-lowlatency 4.18.0-13.14
linux-image-4.18.0-13-snapdragon 4.18.0-13.14
linux-image-aws 4.18.0.1007.7
linux-image-azure 4.18.0.1007.8
linux-image-gcp 4.18.0.1005.5
linux-image-generic 4.18.0.13.14
linux-image-generic-lpae 4.18.0.13.14
linux-image-gke 4.18.0.1005.5
linux-image-kvm 4.18.0.1006.6
linux-image-lowlatency 4.18.0.13.14
linux-image-raspi2 4.18.0.1008.5
linux-image-snapdragon 4.18.0.13.14

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-3846-1
CVE-2018-18710

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.18.0-13.14
https://launchpad.net/ubuntu/+source/linux-aws/4.18.0-1007.9
https://launchpad.net/ubuntu/+source/linux-azure/4.18.0-1007.7
https://launchpad.net/ubuntu/+source/linux-gcp/4.18.0-1005.6
https://launchpad.net/ubuntu/+source/linux-kvm/4.18.0-1006.6
https://launchpad.net/ubuntu/+source/linux-raspi2/4.18.0-1008.10

Original Source

Url : http://www.ubuntu.com/usn/USN-3846-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-200 Information Exposure

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 5
Os 1
Os 3173

Nessus® Vulnerability Scanner

Date Description
2019-01-03 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-1621b2204a.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-f55c305488.nasl - Type : ACT_GATHER_INFO
2018-12-21 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1133.nasl - Type : ACT_GATHER_INFO
2018-12-20 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1133.nasl - Type : ACT_GATHER_INFO
2018-11-27 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-b68776e5b0.nasl - Type : ACT_GATHER_INFO
2018-11-21 Name : The remote EulerOS Virtualization host is missing a security update.
File : EulerOS_SA-2018-1373.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2018-12-21 05:17:48
  • First insertion