CVE-2022-21499 is a medium-severity vulnerability affecting Debian and Oracle Linux distributions, specifically concerning the KGDB and KDB kernel debuggers. The flaw allows an attacker with physical serial port access to trigger the debugger, bypassing lockdown mode and gaining read/write access to kernel memory. This presents a high impact to confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
6CPE matchmatch criteria | cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:* | ||
7CPE matchmatch criteria | cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:* | ||
8CPE matchmatch criteria | cpe:2.3:o:oracle:linux:8:-:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.