CVE-2022-21499

Advisory lineage Upstream: 0 Downstream: 36
Modified
Published: 09 Jun 2022, 20:15
Last modified:24 Sept 2024, 20:05

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.7 MEDIUM
v3.1 (cve.org)
EPSS Score
0.18% LOW
0% probability +0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jun 2022, 20:15
Published
Vulnerability first disclosed
24 Sept 2024, 20:05
Last Modified
Vulnerability information updated

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).

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.18%• Percentile: 39%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•debian_linux

    11.0

  • oracle corporation•oracle linux

    Oracle Linux: 6 | Oracle Linux: 7 | Oracle Linux: 8

  • oracle corporation•oracle vm

    Oracle VM: 3

  • oracle•linux

    6 | 7 | 8

References (3)