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Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3582-2)

high Nessus Plugin ID 106973

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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-3582-2 advisory.

 USN-3582-1 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.

 Mohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel contained a race condition leading to uninitialized pointer usage. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2017-17712)

 Laurent Guerby discovered that the mbcache feature in the ext2 and ext4 filesystems in the Linux kernel improperly handled xattr block caching. A local attacker could use this to cause a denial of service.
 (CVE-2015-8952)

 Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux kernel did not properly track reference counts when merging buffers. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2017-12190)

 ChunYu Wang discovered that a use-after-free vulnerability existed in the SCTP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code, (CVE-2017-15115)

 Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-8824)

 USN-3540-2 mitigated CVE-2017-5715 (Spectre Variant 2) for the amd64 architecture in Ubuntu 14.04 LTS.
 This update provides the compiler-based retpoline kernel mitigation for the amd64 and i386 architectures.

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-3582-2

Plugin Details

Severity: High

ID: 106973

File Name: ubuntu_USN-3582-2.nasl

Version: 3.16

Type: local

Agent: unix

Published: 2/23/2018

Updated: 10/29/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.6

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2017-8824

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-116-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-116-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-116-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-116-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-116-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-116-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-116-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1014-aws

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: 2/22/2018

Vulnerability Publication Date: 10/16/2016

Reference Information

CVE: CVE-2015-8952, CVE-2017-12190, CVE-2017-15115, CVE-2017-17712, CVE-2017-5715, CVE-2017-8824

IAVA: 2018-A-0020

USN: 3582-2