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Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3879-2)

high Nessus Plugin ID 121597

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3879-2 advisory.

 USN-3879-1 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.

 Wen Xu discovered that the ext4 file system implementation in the Linux kernel could possibly perform an out of bounds write when updating the journal for an inline file. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash).
 (CVE-2018-10883)

 Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862)

 Wei Wu discovered that the KVM implementation in the Linux kernel did not properly ensure that ioapics were initialized. A local attacker could use this to cause a denial of service (system crash).
 (CVE-2018-19407)

 Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-19824)

 Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-3879-2

Plugin Details

Severity: High

ID: 121597

File Name: ubuntu_USN-3879-2.nasl

Version: 1.10

Type: local

Agent: unix

Published: 2/5/2019

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2018-20169

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2018-19824

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-142-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-142-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1038-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-142-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-142-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-142-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-142-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-142-powerpc64-emb

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2/4/2019

Vulnerability Publication Date: 7/30/2018

Reference Information

CVE: CVE-2018-10883, CVE-2018-16862, CVE-2018-19407, CVE-2018-19824, CVE-2018-20169

USN: 3879-2