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Ubuntu 16.04 ESM / 18.04 LTS : Linux kernel vulnerabilities (USN-5790-1)

high Nessus Plugin ID 169692

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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-5790-1 advisory.

 It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose sensitive information (kernel memory).
 (CVE-2021-4159)

 It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20421)

 It was discovered that the Intel 740 frame buffer driver in the Linux kernel contained a divide by zero vulnerability. A local attacker could use this to cause a denial of service (system crash).
 (CVE-2022-3061)

 Gwnaun Jung discovered that the SFB packet scheduling implementation in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3586)

 Jann Horn discovered a race condition existed in the Linux kernel when unmapping VMAs in certain situations, resulting in possible use-after-free vulnerabilities. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-39188)

 It was discovered that a race condition existed in the EFI capsule loader driver in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-40307)

 Zheng Wang and Zhuorao Yang discovered that the RealTek RTL8712U wireless driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-4095)

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-5790-1

Plugin Details

Severity: High

ID: 169692

File Name: ubuntu_USN-5790-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/7/2023

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2022-4095

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-4.15.0-1147-aws-hwe, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1158-azure, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1112-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-201-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1143-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1142-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1125-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1058-dell300x, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1133-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1147-aws, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-201-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-201-generic

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/6/2023

Vulnerability Publication Date: 5/6/2022

Reference Information

CVE: CVE-2021-4159, CVE-2022-20421, CVE-2022-3061, CVE-2022-3586, CVE-2022-39188, CVE-2022-40307, CVE-2022-4095

USN: 5790-1