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Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-5667-1)

high Nessus Plugin ID 166013

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Synopsis

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

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5667-1 advisory.

 Selim Enes Karaduman discovered that a race condition existed in the General notification queue implementation of 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-2022-1882)

 Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation (eIBRS) did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information. (CVE-2022-26373)

 Eric Biggers discovered that a use-after-free vulnerability existed in the io_uring subsystem in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3176)

 It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash).
 (CVE-2022-36879)

 Jann Horn discovered that the KVM subsystem in the Linux kernel did not properly handle TLB flush operations in some situations. A local attacker in a guest VM could use this to cause a denial of service (guest crash) or possibly execute arbitrary code in the guest kernel. (CVE-2022-39189)

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-5667-1

Plugin Details

Severity: High

ID: 166013

File Name: ubuntu_USN-5667-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/11/2022

Updated: 8/28/2024

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: 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-2022-1882

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

CVSS Score Source: CVE-2022-39189

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1017-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1019-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-50-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1004-gkeop, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1021-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1016-raspi-nolpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1016-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-50-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-50-lowlatency-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-50-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-50-lowlatency

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2022

Vulnerability Publication Date: 5/26/2022

Reference Information

CVE: CVE-2022-1882, CVE-2022-26373, CVE-2022-3176, CVE-2022-36879, CVE-2022-39189

USN: 5667-1