vulnerability
Ubuntu: USN-6031-1 (CVE-2022-21505): Linux kernel (OEM) vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:M/C:C/I:C/A:C) | Apr 19, 2023 | Apr 21, 2023 | Jan 30, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:M/C:C/I:C/A:C)
Published
Apr 19, 2023
Added
Apr 21, 2023
Modified
Jan 30, 2025
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).
Solution(s)
ubuntu-upgrade-linux-image-5-17-0-1030-oemubuntu-upgrade-linux-image-oem-22-04ubuntu-upgrade-linux-image-oem-22-04a
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