NVD

CVE-2021-20269 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 5.5 MEDIUM

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 2.1 LOW

Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1934261	Issue Tracking Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-276	Incorrect Default Permissions	NIST Red Hat, Inc.

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Change History

5 change records found show changes

CVE Modified by Red Hat, Inc. 2/12/2023 5:15:17 PM

Action	Type	Old Value	New Value
Removed	CVSS V3.1	Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Added	CWE		Red Hat, Inc. CWE-276
Changed	Description	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.	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.
Removed	Reference	https://access.redhat.com/errata/RHSA-2021:4404 [No Types Assigned]
Removed	Reference	https://access.redhat.com/security/cve/CVE-2021-20269 [No Types Assigned]

CVE Modified by Red Hat, Inc. 2/02/2023 4:20:58 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Removed	CWE	Red Hat, Inc. CWE-276
Changed	Description	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.	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.
Added	Reference		https://access.redhat.com/errata/RHSA-2021:4404 [No Types Assigned]
Added	Reference		https://access.redhat.com/security/cve/CVE-2021-20269 [No Types Assigned]

Reanalysis by NIST 10/06/2022 11:32:30 PM

Action	Type	Old Value	New Value
Changed	CPE Configuration	AND OR cpe:2.3:a:kexec-tool_project:kexec-tool::::::::* versions up to (excluding) 2.0.20-47 OR cpe:2.3:o:redhat:enterprise_linux:-:::::::*	AND OR cpe:2.3:a:kexec-tools_project:kexec-tools::::::::* versions up to (excluding) 2.0.20-47 OR cpe:2.3:o:redhat:enterprise_linux:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:a:kexec-tool_project:kexec-tool::::::::* versions up to (excluding) 2.0.21-8 OR cpe:2.3:o:fedoraproject:fedora:-:::::::*	AND OR cpe:2.3:a:kexec-tools_project:kexec-tools::::::::* versions up to (excluding) 2.0.21-8 OR cpe:2.3:o:fedoraproject:fedora:-:::::::*
Added	CVSS V3.1		NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Removed	CVSS V3.1	NIST AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Initial Analysis by NIST 3/15/2022 12:30:13 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:a:kexec-tool_project:kexec-tool::::::::* versions up to (excluding) 2.0.20-47 OR cpe:2.3:o:redhat:enterprise_linux:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:a:kexec-tool_project:kexec-tool::::::::* versions up to (excluding) 2.0.21-8 OR cpe:2.3:o:fedoraproject:fedora:-:::::::*
Added	CVSS V2		NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N)
Added	CVSS V3.1		NIST AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Added	CWE		NIST CWE-276
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1934261 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1934261 Issue Tracking, Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-20269
NVD Published Date:
03/10/2022
NVD Last Modified:
02/12/2023
Source:
Red Hat, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-20269 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

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Change History

CVE Modified by Red Hat, Inc. 5/14/2024 4:03:23 AM

CVE Modified by Red Hat, Inc. 2/12/2023 5:15:17 PM

CVE Modified by Red Hat, Inc. 2/02/2023 4:20:58 PM

Reanalysis by NIST 10/06/2022 11:32:30 PM

Initial Analysis by NIST 3/15/2022 12:30:13 PM

Quick Info