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Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6246-1)

critical Nessus Plugin ID 178794

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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-6246-1 advisory.

 It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3090)

 Mingi Cho discovered that the netfilter subsystem in the Linux kernel did not properly validate the status of a nft chain while performing a lookup by id, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
 (CVE-2023-31248)

 Querijn Voet discovered that a race condition existed in the io_uring 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-2023-3389)

 It was discovered that the netfilter subsystem in the Linux kernel did not properly handle some error conditions, 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-2023-3390)

 Lin Ma discovered that a race condition existed in the MCTP implementation in the Linux kernel, leading to a use-after-free vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3439)

 Tanguy Dubroca discovered that the netfilter subsystem in the Linux kernel did not properly handle certain pointer data type, leading to an out-of- bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35001)

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-6246-1

Plugin Details

Severity: Critical

ID: 178794

File Name: ubuntu_USN-6246-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 7/26/2023

Updated: 9/19/2024

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: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2023-35001

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 v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-78-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1024-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1029-nvidia, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1034-raspi-nolpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1036-intel-iotg, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1039-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1042-azure-fde, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-78-lowlatency-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1040-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1034-ibm, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-78-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1038-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1029-nvidia-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-78-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-78-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1034-raspi

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/25/2023

Vulnerability Publication Date: 6/21/2023

Reference Information

CVE: CVE-2023-3090, CVE-2023-31248, CVE-2023-3389, CVE-2023-3390, CVE-2023-3439, CVE-2023-35001

USN: 6246-1