CVE-2021-20269
Red Hat kexec-tools Information Disclosure
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.
INFO
Published Date :
March 10, 2022, 5:41 p.m.
Last Modified :
Nov. 21, 2024, 5:46 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-20269
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-20269.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1934261 | Issue Tracking Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1934261 | Issue Tracking Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20269 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20269 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1934261 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value 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 CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N 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] Added CWE Red Hat, Inc. CWE-276 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value 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 CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N Added Reference https://access.redhat.com/security/cve/CVE-2021-20269 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2021:4404 [No Types Assigned] Removed CWE Red Hat, Inc. CWE-276 -
Reanalysis by [email protected]
Oct. 07, 2022
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N 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:-:*:*:*:*:*:*:* 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:-:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Mar. 15, 2022
Action Type Old Value New Value 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 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 Added CWE NIST CWE-276 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 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:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20269 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-20269
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.10539
percentile