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Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3848-2)

critical Nessus Plugin ID 119831

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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-3848-2 advisory.

 USN-3848-1 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 a double free existed in the AMD GPIO driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
 (CVE-2017-18174)

 It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896)

 Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690)

 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). (CVE-2018-18710)

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-3848-2

Plugin Details

Severity: Critical

ID: 119831

File Name: ubuntu_USN-3848-2.nasl

Version: 1.10

Type: local

Agent: unix

Published: 12/21/2018

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: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2017-18174

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-141-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-141-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-141-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-141-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1037-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-141-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-141-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-141-lowlatency

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/20/2018

Vulnerability Publication Date: 2/11/2018

Reference Information

CVE: CVE-2017-18174, CVE-2018-12896, CVE-2018-18690, CVE-2018-18710

USN: 3848-2