CVE-2022-21505CWE-346

CVE-2022-21505

Medium · published December 25, 2024

CVSS v3.1
6.7
EPSS
0%
Percentile
9.1
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00198 · 9.1th percentile
Weakness
CWE-346 · Origin Validation Error
Published
2024-12-25T00:15Z
Affected products (3)
ProductVersionsFixed in
oracle/linuxall versions—
oracle/linuxall versions—
oracle/linuxall versions—
References (3)
https://git.kernel.org/linus/543ce63b664e2c2f9533d089a4664b559c3e6b5b · [email protected]https://linux.oracle.com/cve/CVE-2022-21505.html · [email protected]https://cert-portal.siemens.com/productcert/html/ssa-794697.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 24 DEC 18:48Z
    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…
    cvelistv5