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Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-3762-1)

medium Nessus Plugin ID 117454

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3762-1 advisory.

 It was discovered that the VirtIO subsystem in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to possibly expose sensitive information (kernel memory).
 (CVE-2018-1118)

 Seunghun Han discovered an information leak in the ACPI handling code in the Linux kernel when handling early termination of ACPI table loading. A local attacker could use this to expose sensitive informal (kernel address locations). (CVE-2017-13695)

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-3762-1

Plugin Details

Severity: Medium

ID: 117454

File Name: ubuntu_USN-3762-1.nasl

Version: 1.11

Type: local

Agent: unix

Published: 9/12/2018

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: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2018-1118

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-34-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1021-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1019-gcp, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1021-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1023-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-34-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1022-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-34-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-34-lowlatency

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/11/2018

Vulnerability Publication Date: 8/25/2017

Reference Information

CVE: CVE-2017-13695, CVE-2018-1118

USN: 3762-1