Executive Summary

Summary
Title Linux kernel (Xenial HWE) vulnerabilities
Informations
NameUSN-3910-2First vendor Publication2019-03-15
VendorUbuntuLast vendor Modification2019-03-15
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score4.9Attack RangeLocal
Cvss Impact Score6.9Attack ComplexityLow
Cvss Expoit Score3.9AuthenticationNone 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-3910-1 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.

It was discovered that the f2fs filesystem implementation in the Linux kernel did not handle the noflush_merge mount option correctly. An attacker could use this to cause a denial of service (system crash). (CVE-2017-18241)

It was discovered that the procfs filesystem did not properly handle processes mapping some memory elements onto files. A local attacker could use this to block utilities that examine the procfs filesystem to report operating system state, such as ps(1). (CVE-2018-1120)

Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not properly validate metadata received from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-19985)

It was discovered that multiple integer overflows existed in the hugetlbfs implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-7740)

Jann Horn discovered a race condition in the fork() system call in the Linux kernel. A local attacker could use this to gain access to services that cache authorizations. (CVE-2019-6133)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-4.4.0-1039-aws 4.4.0-1039.42
linux-image-4.4.0-143-generic 4.4.0-143.169~14.04.2
linux-image-4.4.0-143-generic-lpae 4.4.0-143.169~14.04.2
linux-image-4.4.0-143-lowlatency 4.4.0-143.169~14.04.2
linux-image-4.4.0-143-powerpc-e500mc 4.4.0-143.169~14.04.2
linux-image-4.4.0-143-powerpc-smp 4.4.0-143.169~14.04.2
linux-image-4.4.0-143-powerpc64-emb 4.4.0-143.169~14.04.2
linux-image-4.4.0-143-powerpc64-smp 4.4.0-143.169~14.04.2
linux-image-aws 4.4.0.1039.40
linux-image-generic-lpae-lts-xenial 4.4.0.143.125
linux-image-generic-lts-xenial 4.4.0.143.125
linux-image-lowlatency-lts-xenial 4.4.0.143.125
linux-image-powerpc-e500mc-lts-xenial 4.4.0.143.125
linux-image-powerpc-smp-lts-xenial 4.4.0.143.125
linux-image-powerpc64-emb-lts-xenial 4.4.0.143.125
linux-image-powerpc64-smp-lts-xenial 4.4.0.143.125
linux-image-virtual-lts-xenial 4.4.0.143.125

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-3910-2
https://usn.ubuntu.com/usn/usn-3910-1
CVE-2017-18241, CVE-2018-1120, CVE-2018-19985, CVE-2018-7740,
CVE-2019-6133

Package Information:
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1039.42
https://launchpad.net/ubuntu/+source/linux-lts-xenial/4.4.0-143.169~14.04.2

Original Source

Url : http://www.ubuntu.com/usn/USN-3910-2

CWE : Common Weakness Enumeration

%idName
40 %CWE-119Failure to Constrain Operations within the Bounds of a Memory Buffer
20 %CWE-476NULL Pointer Dereference
20 %CWE-284Access Control (Authorization) Issues
20 %CWE-125Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application1
Application1
Application1
Application1
Os5
Os3
Os2997
Os2
Os2
Os2
Os1
Os1
Os2

Nessus® Vulnerability Scanner

DateDescription
2019-01-03Name : The remote Fedora host is missing a security update.
File : fedora_2018-8ce90c8b24.nasl - Type : ACT_GATHER_INFO
2018-12-11Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1406.nasl - Type : ACT_GATHER_INFO
2018-11-16Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-3083.nasl - Type : ACT_GATHER_INFO
2018-09-18Name : The remote EulerOS Virtualization host is missing multiple security updates.
File : EulerOS_SA-2018-1280.nasl - Type : ACT_GATHER_INFO
2018-08-17Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-1_0-0135.nasl - Type : ACT_GATHER_INFO
2018-07-20Name : The remote Debian host is missing a security update.
File : debian_DLA-1423.nasl - Type : ACT_GATHER_INFO
2018-07-18Name : The remote Virtuozzo host is missing multiple security updates.
File : Virtuozzo_VZA-2018-048.nasl - Type : ACT_GATHER_INFO
2018-07-16Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZA-2018-045.nasl - Type : ACT_GATHER_INFO
2018-07-16Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZA-2018-046.nasl - Type : ACT_GATHER_INFO
2018-06-12Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1038.nasl - Type : ACT_GATHER_INFO
2018-06-12Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1038.nasl - Type : ACT_GATHER_INFO
2018-05-31Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201805-14.nasl - Type : ACT_GATHER_INFO
2018-05-29Name : The remote Fedora host is missing a security update.
File : fedora_2018-93c2e74446.nasl - Type : ACT_GATHER_INFO
2018-05-03Name : The remote Debian host is missing a security update.
File : debian_DLA-1369.nasl - Type : ACT_GATHER_INFO
2018-05-02Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4187.nasl - Type : ACT_GATHER_INFO
2018-05-02Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4188.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
DateInformations
2019-03-21 21:21:44
  • Multiple Updates
2019-03-16 00:18:54
  • First insertion