Vulnerability Details : CVE-2021-20269
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.
Exploit prediction scoring system (EPSS) score for CVE-2021-20269
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 11 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-20269
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-20269
-
During installation, installed file permissions are set to allow anyone to modify those files.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2021-20269
-
https://bugzilla.redhat.com/show_bug.cgi?id=1934261
1934261 – (CVE-2021-20269) CVE-2021-20269 kernel: incorrect permissions on kdump dmesg fileIssue Tracking;Third Party Advisory
Products affected by CVE-2021-20269
- cpe:2.3:a:kexec-tools_project:kexec-tools:*:*:*:*:*:*:*:*
- cpe:2.3:a:kexec-tools_project:kexec-tools:*:*:*:*:*:*:*:*