CVE-2022-21505
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).
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:LAttack ComplexityLow
PR:HPrivileges RequiredHigh
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Oracle Corporation
commercial·USaka oracle, oracle corp.
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Сообщество свободного программного обеспечения
oss-projectaka fsf
Novell Inc.
commercial·US
ООО «Ред Софт»
commercial·RUaka red soft
АО «НППКТ»
commercial·RU
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://cert-portal.siemens.com/productcert/csaf/ssa-794697.json
cert-portal.siemens.com
and 22 more references View all →
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