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Ubuntu 22.04 LTS : Linux kernel vulnerabilities (USN-6192-1)

high Nessus Plugin ID 178657

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Synopsis

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

Description

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6192-1 advisory.

 - A vulnerability was found due to missing lock for IOPOLL flaw in io_cqring_event_overflow() in io_uring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat. (CVE-2023-2430)

 - An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7.
 It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets.
 This may result in denial of service or privilege escalation. (CVE-2023-35788)

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-6192-1

Plugin Details

Severity: High

ID: 178657

File Name: ubuntu_USN-6192-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 7/20/2023

Updated: 1/9/2024

Supported Sensors: Agentless 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: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2023-35788

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.19.0-46-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.19.0-1020-starfive, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.19.0-1028-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.19.0-46-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.19.0-1027-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.19.0-46-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.19.0-1015-allwinner

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: 6/29/2023

Vulnerability Publication Date: 6/16/2023

Reference Information

CVE: CVE-2023-2430, CVE-2023-35788

USN: 6192-1