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[email protected]CVE-2022-21499

HistoryJun 09, 2022 - 9:15 p.m.

CVE-2022-21499

2022-06-0921:15:07

CWE-787

[email protected]

web.nvd.nist.gov

160

cve-2022-21499

kgdb

kdb

lockdown mode

kernel memory

debugger

cvss 3.1

confidentiality

integrity

availability

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.6%

JSON

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).

Affected configurations

NVD

Node

oraclelinuxMatch6-

oraclelinuxMatch7-

oraclelinuxMatch8-

Node

debiandebian_linuxMatch11.0

CPENameOperatorVersion
oracle:linuxoracle linuxeq6
oracle:linuxoracle linuxeq7
oracle:linuxoracle linuxeq8

CPE	Name	Operator	Version
oracle:linux	oracle linux	eq	6
oracle:linux	oracle linux	eq	7
oracle:linux	oracle linux	eq	8

CNA Affected

[
  {
    "product": "Oracle Linux",
    "vendor": "Oracle Corporation",
    "versions": [
      {
        "status": "affected",
        "version": "Oracle Linux: 6"
      },
      {
        "status": "affected",
        "version": "Oracle Linux: 7"
      },
      {
        "status": "affected",
        "version": "Oracle Linux: 8"
      }
    ]
  },
  {
    "product": "Oracle VM",
    "vendor": "Oracle Corporation",
    "versions": [
      {
        "status": "affected",
        "version": "Oracle VM: 3"
      }
    ]
  }
]