Rocky Linux 8 : kexec-tools (RLSA-2021:4404)

medium Nessus Plugin ID 184765

Synopsis

The remote Rocky Linux host is missing a security update.

Description

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:4404 advisory.

- A flaw was found in the permissions of a log file created by kexec-tools. This flaw allows a local unprivileged user to read this file and leak kernel internal information from a previous panic. The highest threat from this vulnerability is to confidentiality. This flaw affects kexec-tools shipped by Fedora versions prior to 2.0.21-8 and RHEL versions prior to 2.0.20-47. (CVE-2021-20269)

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 kexec-tools, kexec-tools-debuginfo and / or kexec-tools-debugsource packages.

See Also

https://errata.rockylinux.org/RLSA-2021:4404

https://bugzilla.redhat.com/show_bug.cgi?id=1892558

https://bugzilla.redhat.com/show_bug.cgi?id=1915819

https://bugzilla.redhat.com/show_bug.cgi?id=1918499

https://bugzilla.redhat.com/show_bug.cgi?id=1934261

https://bugzilla.redhat.com/show_bug.cgi?id=1965267

Plugin Details

Severity: Medium

ID: 184765

File Name: rocky_linux_RLSA-2021-4404.nasl

Version: 1.0

Type: local

Published: 11/6/2023

Updated: 11/6/2023

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-20269

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:kexec-tools, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:kexec-tools-debugsource, p-cpe:/a:rocky:linux:kexec-tools-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2021

Vulnerability Publication Date: 11/9/2021

Reference Information

CVE: CVE-2021-20269