Vulnerability Name:

CVE-2022-21499 (CCN-227207)

Assigned:2021-11-15
Published:2022-05-24
Updated:2022-09-28
Summary: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 v3 Severity:6.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.7 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.5 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:M/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Multiple_Instances
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2022-21499

Source: MISC
Type: Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html

Source: XF
Type: UNKNOWN
linux-kernel-cve202221499-sec-bypass(227207)

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://git.kernel.org/linus/eadb2f47a3ced5c64b23b90fd2a3463f63726066

Source: CCN
Type: Linux Kernel GIT Repository
lockdown: also lock down previous kgdb use

Source: CCN
Type: oss-sec Mailing List, Tue, 24 May 2022 17:10:40 +0000
CVE-2022-21499: trivial lockdown break

Source: DEBIAN
Type: Third Party Advisory
DSA-5161

Vulnerable Configuration:Configuration 1:
  • cpe:/o:oracle:linux:6:-:*:*:*:*:*:*
  • OR cpe:/o:oracle:linux:7:-:*:*:*:*:*:*
  • OR cpe:/o:oracle:linux:8:-:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:11.0:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::nfv:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::realtime:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 6:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • Configuration RedHat 7:
  • cpe:/a:redhat:enterprise_linux:9:*:*:*:*:*:*:*

    • Configuration RedHat 8:
  • cpe:/a:redhat:enterprise_linux:9::nfv:*:*:*:*:*

    • Configuration RedHat 9:
  • cpe:/a:redhat:enterprise_linux:9::realtime:*:*:*:*:*

    • Configuration RedHat 10:
  • cpe:/a:redhat:enterprise_linux:9::appstream:*:*:*:*:*

    • Configuration RedHat 11:
  • cpe:/a:redhat:enterprise_linux:9::crb:*:*:*:*:*

    • Configuration RedHat 12:
  • cpe:/o:redhat:enterprise_linux:9:*:*:*:*:*:*:*

    • Configuration RedHat 13:
  • cpe:/o:redhat:enterprise_linux:9::baseos:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:8029
    P
    		kernel-docs-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-20
    oval:org.opensuse.security:def:7539
    P
    		kernel-64kb-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:8090
    P
    		reiserfs-kmp-default-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-12
    oval:com.redhat.rhsa:def:20227933
    P
    		RHSA-2022:7933: kernel-rt security and bug fix update (Moderate)
    2022-11-15
    oval:com.redhat.rhsa:def:20228267
    P
    		RHSA-2022:8267: kernel security, bug fix, and enhancement update (Moderate)
    2022-11-15
    oval:com.redhat.rhsa:def:20227683
    P
    		RHSA-2022:7683: kernel security, bug fix, and enhancement update (Moderate)
    2022-11-08
    oval:com.redhat.rhsa:def:20227444
    P
    		RHSA-2022:7444: kernel-rt security and bug fix update (Moderate)
    2022-11-08
    oval:org.opensuse.security:def:4737
    P
    		Security update for the Linux Kernel (Important)
    2022-08-02
    oval:org.opensuse.security:def:95383
    P
    		Security update for the Linux Kernel (Important)
    2022-08-01
    oval:org.opensuse.security:def:3753
    P
    		Security update for the Linux Kernel (Important)
    2022-08-01
    oval:org.opensuse.security:def:627
    P
    		Security update for the Linux Kernel (Important)
    2022-08-01
    oval:org.opensuse.security:def:118222
    P
    		Security update for the Linux Kernel (Live Patch 21 for SLE 15 SP2) (Important)
    2022-07-21
    oval:org.opensuse.security:def:94263
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:3794
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:3643
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:4653
    P
    		Security update for the Linux Kernel (Live Patch 22 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:95350
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:118219
    P
    		Security update for the Linux Kernel (Live Patch 20 for SLE 15 SP2) (Important)
    2022-07-21
    oval:org.opensuse.security:def:93630
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:3726
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:4657
    P
    		Security update for the Linux Kernel (Live Patch 28 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:4650
    P
    		Security update for the Linux Kernel (Live Patch 20 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:95416
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:94472
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:118214
    P
    		Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP2) (Important)
    2022-07-21
    oval:org.opensuse.security:def:93159
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:3705
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:4654
    P
    		Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:589
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:95355
    P
    		Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP4) (Important)
    2022-07-21
    oval:org.opensuse.security:def:118220
    P
    		Security update for the Linux Kernel (Live Patch 24 for SLE 15 SP2) (Important)
    2022-07-21
    oval:org.opensuse.security:def:93837
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:4658
    P
    		Security update for the Linux Kernel (Live Patch 31 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:4651
    P
    		Security update for the Linux Kernel (Live Patch 21 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:95427
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:95273
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:118215
    P
    		Security update for the Linux Kernel (Live Patch 26 for SLE 15 SP2) (Important)
    2022-07-21
    oval:org.opensuse.security:def:93319
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:3720
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:4655
    P
    		Security update for the Linux Kernel (Live Patch 26 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:125381
    P
    		Security update for the Linux Kernel (Live Patch 24 for SLE 12 SP4) (Important)
    2022-07-21
    oval:org.opensuse.security:def:95356
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:118221
    P
    		Security update for the Linux Kernel (Live Patch 16 for SLE 15 SP2) (Important)
    2022-07-21
    oval:org.opensuse.security:def:94051
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:3783
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:4652
    P
    		Security update for the Linux Kernel (Live Patch 29 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:95335
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:118217
    P
    		Security update for the Linux Kernel (Live Patch 18 for SLE 15 SP2) (Important)
    2022-07-21
    oval:org.opensuse.security:def:93477
    P
    		 (Important)
    2022-07-21
    oval:org.opensuse.security:def:3725
    P
    		Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP4) (Important)
    2022-07-21
    oval:org.opensuse.security:def:4656
    P
    		Security update for the Linux Kernel (Live Patch 27 for SLE 12 SP5) (Important)
    2022-07-21
    oval:org.opensuse.security:def:125382
    P
    		Security update for the Linux Kernel (Live Patch 26 for SLE 12 SP4) (Important)
    2022-07-21
    oval:org.opensuse.security:def:118213
    P
    		Security update for the Linux Kernel (Live Patch 23 for SLE 15 SP2) (Important)
    2022-07-20
    oval:org.opensuse.security:def:118210
    P
    		Security update for the Linux Kernel (Live Patch 17 for SLE 15 SP2) (Important)
    2022-07-20
    oval:org.opensuse.security:def:125380
    P
    		Security update for the Linux Kernel (Live Patch 22 for SLE 12 SP4) (Important)
    2022-07-20
    oval:org.opensuse.security:def:118211
    P
    		Security update for the Linux Kernel (Live Patch 19 for SLE 15 SP2) (Important)
    2022-07-20
    oval:org.opensuse.security:def:118212
    P
    		Security update for the Linux Kernel (Live Patch 22 for SLE 15 SP2) (Important)
    2022-07-20
    oval:org.opensuse.security:def:125378
    P
    		Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP4) (Important)
    2022-07-19
    oval:org.opensuse.security:def:4644
    P
    		Security update for the Linux Kernel (Live Patch 24 for SLE 12 SP5) (Important)
    2022-07-19
    oval:org.opensuse.security:def:4645
    P
    		Security update for the Linux Kernel (Live Patch 25 for SLE 12 SP5) (Important)
    2022-07-19
    oval:org.opensuse.security:def:125377
    P
    		Security update for the Linux Kernel (Live Patch 25 for SLE 12 SP4) (Important)
    2022-07-19
    oval:org.opensuse.security:def:4647
    P
    		Security update for the Linux Kernel (Live Patch 30 for SLE 12 SP5) (Important)
    2022-07-19
    oval:org.opensuse.security:def:125755
    P
    		Security update for the Linux Kernel (Important)
    2022-07-14
    oval:org.opensuse.security:def:125116
    P
    		Security update for the Linux Kernel (Important)
    2022-07-14
    oval:org.opensuse.security:def:126919
    P
    		Security update for the Linux Kernel (Important)
    2022-07-14
    oval:org.opensuse.security:def:125375
    P
    		Security update for the Linux Kernel (Important)
    2022-07-14
    oval:org.opensuse.security:def:127316
    P
    		Security update for the Linux Kernel (Important)
    2022-07-14
    oval:org.opensuse.security:def:5277
    P
    		Security update for the Linux Kernel (Important)
    2022-06-20
    oval:org.opensuse.security:def:4628
    P
    		Security update for the Linux Kernel (Important)
    2022-06-20
    oval:org.opensuse.security:def:6075
    P
    		Security update for the Linux Kernel (Important)
    2022-06-20
    oval:org.opensuse.security:def:4296
    P
    		Security update for the Linux Kernel (Important)
    2022-06-20
    oval:org.opensuse.security:def:6339
    P
    		Security update for the Linux Kernel (Important)
    2022-06-20
    oval:org.opensuse.security:def:531
    P
    		Security update for the Linux Kernel (Important)
    2022-06-17
    oval:org.opensuse.security:def:6070
    P
    		Security update for the Linux Kernel (Important)
    2022-06-14
    BACK
    oracle linux 6 -
    oracle linux 7 -
    oracle linux 8 -
    debian debian linux 11.0
    linux linux kernel -