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Ubuntu 16.04 ESM / 18.04 LTS : Linux kernel vulnerabilities (USN-5003-1)

high Nessus Plugin ID 150952

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5003-1 advisory.

 Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

 It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code. (CVE-2021-3600)

 Or Cohen discovered that the SCTP implementation in the Linux kernel contained a race condition in some situations, leading to a use-after-free condition. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23133)

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-5003-1

Plugin Details

Severity: High

ID: 150952

File Name: ubuntu_USN-5003-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 6/23/2021

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: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-3609

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

CVSS Score Source: CVE-2021-3600

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1089-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1106-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1022-dell300x, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-147-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-147-generic-lpae, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1075-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-147-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1103-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1106-snapdragon, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1118-azure

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: 6/23/2021

Vulnerability Publication Date: 4/22/2021

Reference Information

CVE: CVE-2021-23133, CVE-2021-3600, CVE-2021-3609

USN: 5003-1