Ubuntu 16.04 ESM / 18.04 LTS : Linux kernel vulnerabilities (USN-5114-1)

high Nessus Plugin ID 154273

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-5114-1 advisory.

- u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)

- arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)

- A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)

- The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.
(CVE-2021-42008)

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-5114-1

Plugin Details

Severity: High

ID: 154273

File Name: ubuntu_USN-5114-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/20/2021

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: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-42008

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:16.04:-:esm, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1029-dell300x, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1082-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1097-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1101-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1110-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1113-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1114-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1125-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-161-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-161-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-161-lowlatency

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: 10/20/2021

Vulnerability Publication Date: 9/8/2020

Reference Information

CVE: CVE-2020-3702, CVE-2021-38198, CVE-2021-40490, CVE-2021-42008

USN: 5114-1