CVE-2022-21499

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 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.13%
Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: Oracle Corporation Oracle Linux
Affected: Oracle Corporation Oracle VM
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/linus/eadb2f47a3ced5c64b23b90fd2a3463f63726066 patch vendor advisory mailing list
https://www.debian.org/security/2022/dsa-5161 third party advisory vendor advisory
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2022-21499?
CVE-2022-21499 has been scored as a medium severity vulnerability.
How to fix CVE-2022-21499?
To fix CVE-2022-21499, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-21499 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-21499 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-21499?
CVE-2022-21499 affects Oracle Corporation Oracle Linux, Oracle Corporation Oracle VM.
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