PT-2022-9175 · Unknown+3 · Kexec-Tools+3

Guilherme De Almeida Suckevicz · Published 2021-11-09 · Updated 2023-02-12 · CVE-2021-20269

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions kexec-tools versions prior to 2.0.21-8 kexec-tools versions prior to 2.0.20-47

Description A flaw was found in the permissions of a log file created by kexec-tools, allowing 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.

Recommendations For kexec-tools versions prior to 2.0.21-8, update to version 2.0.21-8 or later. For kexec-tools versions prior to 2.0.20-47, update to version 2.0.20-47 or later.

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CESA-2021_4404

CVE-2021-20269

OESA-2022-1825

RHSA-2021:4404

RHSA-2021_4404

RLSA-2021:4404

Affected Products

Centos

Red Hat

Rocky Linux

Kexec-Tools

References · 13

• https://errata.rockylinux.org/RLSA-2021:4404 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-1825 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20269 · Security Note
• https://osv.dev/vulnerability/RLSA-2021:4404 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-20269 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-4404.html · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1915819 · Note
• https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1825 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=1892558 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=1934261 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=1965267 · Note
• https://t.me/cvenotify/28044 · Telegram Post
• https://bugzilla.redhat.com/show_bug.cgi?id=1918499 · Note