Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Linux kernel (Xenial HWE) vulnerabilities
Informations
Name USN-3797-2 First vendor Publication 2018-10-23
Vendor Ubuntu Last vendor Modification 2018-10-23
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:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 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 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description: - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty

Details:

USN-3797-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.

Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734)

It was discovered that an integer overflow existed in the CD-ROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-16658)

It was discovered that a integer overflow existed in the HID Bluetooth implementation in the Linux kernel that could lead to a buffer overwrite. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-9363)

Yves Younan discovered that the CIPSO labeling implementation in the Linux kernel did not properly handle IP header options in some situations. A remote attacker could use this to specially craft network traffic that could cause a denial of service (infinite loop). (CVE-2018-10938)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-4.4.0-1032-aws 4.4.0-1032.35
linux-image-4.4.0-138-generic 4.4.0-138.164~14.04.1
linux-image-4.4.0-138-generic-lpae 4.4.0-138.164~14.04.1
linux-image-4.4.0-138-lowlatency 4.4.0-138.164~14.04.1
linux-image-4.4.0-138-powerpc-e500mc 4.4.0-138.164~14.04.1
linux-image-4.4.0-138-powerpc-smp 4.4.0-138.164~14.04.1
linux-image-4.4.0-138-powerpc64-emb 4.4.0-138.164~14.04.1
linux-image-4.4.0-138-powerpc64-smp 4.4.0-138.164~14.04.1
linux-image-aws 4.4.0.1032.32
linux-image-generic-lpae-lts-xenial 4.4.0.138.118
linux-image-generic-lts-xenial 4.4.0.138.118
linux-image-lowlatency-lts-xenial 4.4.0.138.118
linux-image-powerpc-e500mc-lts-xenial 4.4.0.138.118
linux-image-powerpc-smp-lts-xenial 4.4.0.138.118
linux-image-powerpc64-emb-lts-xenial 4.4.0.138.118
linux-image-powerpc64-smp-lts-xenial 4.4.0.138.118

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-3797-2
https://usn.ubuntu.com/usn/usn-3797-1
CVE-2018-10938, CVE-2018-14734, CVE-2018-16658, CVE-2018-9363

Package Information:
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1032.35
https://launchpad.net/ubuntu/+source/linux-lts-xenial/4.4.0-138.164~14.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-3797-2

CWE : Common Weakness Enumeration

% Id Name
25 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
25 % CWE-416 Use After Free
25 % CWE-200 Information Exposure
25 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 5
Os 2
Os 1
Os 3151

Nessus® Vulnerability Scanner

Date Description
2019-01-03 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-59e4747e0f.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-ca0e10fc6e.nasl - Type : ACT_GATHER_INFO
2018-12-28 Name : The remote EulerOS Virtualization host is missing a security update.
File : EulerOS_SA-2018-1407.nasl - Type : ACT_GATHER_INFO
2018-12-28 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1432.nasl - Type : ACT_GATHER_INFO
2018-11-21 Name : The remote EulerOS Virtualization host is missing a security update.
File : EulerOS_SA-2018-1370.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
2018-10-11 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1086.nasl - Type : ACT_GATHER_INFO
2018-10-05 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1086.nasl - Type : ACT_GATHER_INFO
2018-10-04 Name : The remote Debian host is missing a security update.
File : debian_DLA-1531.nasl - Type : ACT_GATHER_INFO
2018-10-02 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4308.nasl - Type : ACT_GATHER_INFO
2018-08-10 Name : The remote Fedora host is missing one or more security updates.
File : fedora_2018-2f6df9abfb.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2018-12-13 00:21:17
  • Multiple Updates
2018-11-07 12:09:17
  • Multiple Updates
2018-11-06 17:21:48
  • Multiple Updates
2018-10-23 09:22:10
  • Multiple Updates
2018-10-23 09:19:21
  • First insertion