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CVE-2022-21505

Published: Dec 24, 2024Updated: Jun 18, 2025 Sources: CVE List NVD BDU csafCWE-346
NVD MITRE
6.7CVSSMEDIUM
EPSS Score
0.2%
Top 90.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

In the linux kernel, if IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents setting "ima_appraise=log" from the boot param when Secure Boot is enabled, but this does not cover cases where lockdown is used without Secure Boot. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity, Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-346

Affected Products

Oracle LinuxOracle Corporation
On-prem
Databases / relational
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»ООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
OpenSUSE LeapNovell Inc.
On-premOS
Operating Systems / linux-distro
oracle corporationcommercialUSDatabasesaka oracle
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
novell inc.commercialUSOperating Systems
and 4 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://git.kernel.org/linus/543ce63b664e2c2f9533d089a4664b559c3e6b5b
git.kernel.org
https://linux.oracle.com/cve/CVE-2022-21505.html
linux.oracle.com
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=543ce63b664e2c2f9533d089a4664b559c3e6b5b
git.kernel.org
and 22 more references View all →

Timeline

Published
Dec 24, 2024
Last Updated
Jun 18, 2025

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