Executive Summary

Summary
Title Linux kernel vulnerability
Informations
Name USN-3732-1 First vendor Publication 2018-08-06
Vendor Ubuntu Last vendor Modification 2018-08-06
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:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 18.04 LTS

Summary:

The system could be made unavailable if it received specially crafted network traffic.

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-oem: Linux kernel for OEM processors - linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

Juha-Matti Tilli discovered that the TCP implementation in the Linux kernel performed algorithmically expensive operations in some situations when handling incoming packets. A remote attacker could use this to cause a denial of service.

Update instructions:

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

Ubuntu 18.04 LTS:
linux-image-4.15.0-1013-oem 4.15.0-1013.16
linux-image-4.15.0-1015-gcp 4.15.0-1015.15
linux-image-4.15.0-1017-aws 4.15.0-1017.17
linux-image-4.15.0-1017-kvm 4.15.0-1017.17
linux-image-4.15.0-1018-raspi2 4.15.0-1018.19
linux-image-4.15.0-1019-azure 4.15.0-1019.19
linux-image-4.15.0-30-generic 4.15.0-30.32
linux-image-4.15.0-30-generic-lpae 4.15.0-30.32
linux-image-4.15.0-30-lowlatency 4.15.0-30.32
linux-image-4.15.0-30-snapdragon 4.15.0-30.32
linux-image-aws 4.15.0.1017.17
linux-image-azure 4.15.0.1019.19
linux-image-azure-edge 4.15.0.1019.19
linux-image-gcp 4.15.0.1015.17
linux-image-generic 4.15.0.30.32
linux-image-generic-lpae 4.15.0.30.32
linux-image-gke 4.15.0.1015.17
linux-image-kvm 4.15.0.1017.17
linux-image-lowlatency 4.15.0.30.32
linux-image-oem 4.15.0.1013.15
linux-image-raspi2 4.15.0.1018.16
linux-image-snapdragon 4.15.0.30.32

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-3732-1
CVE-2018-5390

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.15.0-30.32
https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1017.17
https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1019.19
https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1015.15
https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1017.17
https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1013.16
https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1018.19

Original Source

Url : http://www.ubuntu.com/usn/USN-3732-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 6
Application 1
Application 2
Application 1
Application 1
Application 1
Application 1
Application 88
Application 77
Application 80
Application 74
Application 99
Application 75
Application 73
Application 69
Application 93
Application 89
Application 93
Application 78
Application 84
Application 1
Application 1
Application 1
Application 1
Application 1
Hardware 7
Hardware 6
Os 9
Os 4
Os 2
Os 3155
Os 1
Os 1
Os 6
Os 6
Os 4
Os 1

Nessus® Vulnerability Scanner

Date Description
2019-01-10 Name : The remote device is affected by multiple vulnerabilities.
File : juniper_space_jsa10917_184R1.nasl - Type : ACT_GATHER_INFO
2018-12-14 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL95343321.nasl - Type : ACT_GATHER_INFO
2018-12-05 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-2_0-0101.nasl - Type : ACT_GATHER_INFO
2018-10-26 Name : The remote EulerOS Virtualization host is missing multiple security updates.
File : EulerOS_SA-2018-1345.nasl - Type : ACT_GATHER_INFO
2018-10-25 Name : The remote EulerOS Virtualization host is missing a security update.
File : EulerOS_SA-2018-1322.nasl - Type : ACT_GATHER_INFO
2018-09-04 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1278.nasl - Type : ACT_GATHER_INFO
2018-09-04 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1279.nasl - Type : ACT_GATHER_INFO
2018-08-31 Name : The remote Virtuozzo host is missing multiple security updates.
File : Virtuozzo_VZA-2018-063.nasl - Type : ACT_GATHER_INFO
2018-08-20 Name : The remote Virtuozzo host is missing multiple security updates.
File : Virtuozzo_VZA-2018-055.nasl - Type : ACT_GATHER_INFO
2018-08-16 Name : The remote Debian host is missing a security update.
File : debian_DLA-1466.nasl - Type : ACT_GATHER_INFO
2018-08-15 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-2384.nasl - Type : ACT_GATHER_INFO
2018-08-15 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-2390.nasl - Type : ACT_GATHER_INFO
2018-08-07 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1050.nasl - Type : ACT_GATHER_INFO
2018-08-07 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1049.nasl - Type : ACT_GATHER_INFO
2018-08-07 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4266.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2018-10-11 17:21:50
  • Multiple Updates
2018-08-07 00:21:17
  • Multiple Updates
2018-08-07 00:18:58
  • First insertion