RHEL 7 : kernel-alt (RHSA-2020:4279)

high Nessus Plugin ID 141546

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New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4279 advisory.

- kernel: net: bluetooth: type confusion while processing AMP packets (CVE-2020-12351)

- kernel: net: bluetooth: information leak when processing certain AMP packets (CVE-2020-12352)

- kernel: information exposure in drivers/char/random.c and kernel/time/timer.c (CVE-2020-16166)

- kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://cwe.mitre.org/data/definitions/200.html

https://cwe.mitre.org/data/definitions/284.html

https://cwe.mitre.org/data/definitions/843.html

https://access.redhat.com/security/cve/CVE-2020-25212

https://cwe.mitre.org/data/definitions/201.html

https://cwe.mitre.org/data/definitions/367.html

https://access.redhat.com/security/cve/CVE-2020-12351

https://access.redhat.com/security/cve/CVE-2020-12352

https://access.redhat.com/security/cve/CVE-2020-16166

https://access.redhat.com/errata/RHSA-2020:4279

https://bugzilla.redhat.com/1865751

https://bugzilla.redhat.com/1877575

https://bugzilla.redhat.com/1886521

https://bugzilla.redhat.com/1886529

Plugin Details

Severity: High

ID: 141546

File Name: redhat-RHSA-2020-4279.nasl

Version: 1.8

Type: local

Agent: unix

Published: 10/20/2020

Updated: 7/21/2021

Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl, redhat_repos.nasl

Risk Information

CVSS Score Source: CVE-2020-12351

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:A/AC:L/PR:N/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:2.3:o:redhat:enterprise_linux:7:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:python-perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-abi-whitelists:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-kdump:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-kdump-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-bootwrapper:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/19/2020

Vulnerability Publication Date: 7/30/2020

Reference Information

CVE: CVE-2020-16166, CVE-2020-25212, CVE-2020-12351, CVE-2020-12352

CWE: 200, 284, 843, 201, 367

RHSA: 2020:4279