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CVE-2022-21499

Public on 2022-06-09
Modified on 2024-02-03
Description

KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H).

Severity
Medium
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CVSS v3 Base Score
6.4
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-06-30 22:29 ALAS2KERNEL-5.10-2022-015
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-06-30 22:29 ALAS2KERNEL-5.4-2022-028

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.4 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
NVD CVSSv2 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P
NVD CVSSv3 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2022-21499 Mitre: CVE-2022-21499 FAQs regarding Amazon Linux ALAS/CVE Severity