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Ubuntu 18.04 LTS : Linux kernel vulnerability (USN-3732-1)

high Nessus Plugin ID 111579

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3732-1 advisory.

 Juha-Matti Tilli discovered that the TCP implementation in the Linux kernel performed algorithmically expensive operations in some situations when handling incoming packets. A remote attacker could use this to cause a denial of service.

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

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-3732-1

Plugin Details

Severity: High

ID: 111579

File Name: ubuntu_USN-3732-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 8/7/2018

Updated: 8/27/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, 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-4.15.0-1019-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1017-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1017-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1015-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1013-oem, 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, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-30-snapdragon, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-30-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1018-raspi2

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

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: 3732-1