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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Linux kernel vulnerability (USN-4489-1)

high Nessus Plugin ID 140450

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4489-1 advisory.

 - A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity. (CVE-2020-14386)

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-4489-1

Plugin Details

Severity: High

ID: 140450

File Name: ubuntu_USN-4489-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 9/9/2020

Updated: 1/9/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-14386

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1053-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1069-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1070-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1074-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1082-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1083-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1086-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1095-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1096-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-117-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-117-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-117-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-1047-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-1068-oem-osp1, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.3.0-1033-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.3.0-1035-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.3.0-1036-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.3.0-67-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.3.0-67-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1018-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1024-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1024-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1024-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1025-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-47-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-47-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-47-lowlatency, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2020

Vulnerability Publication Date: 9/16/2020

Reference Information

CVE: CVE-2020-14386

USN: 4489-1