Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerability (USN-3732-2)

high Nessus Plugin ID 111580

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3732-2 advisory.

- Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service. (CVE-2018-5390)

Note that Nessus has not tested for this issue 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-3732-2

Plugin Details

Severity: High

ID: 111580

File Name: ubuntu_USN-3732-2.nasl

Version: 1.9

Type: local

Agent: unix

Published: 8/7/2018

Updated: 1/9/2024

Supported Sensors: Agentless 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: 5.8

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

CVSS Score Source: CVE-2018-5390

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1015-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1019-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-30-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-30-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-30-lowlatency, cpe:/o:canonical:ubuntu_linux:16.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/6/2018

Vulnerability Publication Date: 8/6/2018

Reference Information

CVE: CVE-2018-5390

USN: 3732-2