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Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3099-2)

high Nessus Plugin ID 93957

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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-3099-2 advisory.

 USN-3099-1 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.

 Vladimr Bene discovered an unbounded recursion in the VLAN and TEB Generic Receive Offload (GRO) processing implementations in the Linux kernel, A remote attacker could use this to cause a stack corruption, leading to a denial of service (system crash). (CVE-2016-7039)

 Marco Grassi discovered a use-after-free condition could occur in the TCP retransmit queue handling code in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-6828)

 Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller driver in the Linux kernel when handling ioctl()s. A local attacker could use this to cause a denial of service (system crash).
 (CVE-2016-6480)

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-3099-2

Plugin Details

Severity: High

ID: 93957

File Name: ubuntu_USN-3099-2.nasl

Version: 2.18

Type: local

Agent: unix

Published: 10/11/2016

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: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2016-7039

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-4.4.0-42-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-42-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-42-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-42-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-42-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-42-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-42-powerpc64-smp

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: 10/11/2016

Vulnerability Publication Date: 8/6/2016

Reference Information

CVE: CVE-2016-6480, CVE-2016-6828, CVE-2016-7039

USN: 3099-2