CVE-2022-21505
In the linux kernel, if IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents
02 Description
In the linux kernel, if IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.19% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 9.5% of scored records. A rank, not a probability.
- NVD base score
- 6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-14.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-12-24 18:48Z1 YR AGO
- Last updated
- 2026-10-14 15:02Z15 DAYS AGO
- Reserved
- 2021-11-15
- Assigning CNA
- oracle
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.7)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 159342183699405786ac4f7df57b7b031c4a3c277bb0cd17d2af680c329e778c
05 Affected products
06 References
- git.kernel.orgGithub commithttps://git.kernel.org/linus/543ce63b664e2c2f9533d089a4664b559c3e6b5b
- linux.oracle.comOracle Advisoryhttps://linux.oracle.com/cve/CVE-2022-21505.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-794697.html
07 Fixed in
AlmaLinux 9
- bpftool Fixed in 7.0.0-284.11.1.el9_2
- kernel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-abi-stablelists Fixed in 5.14.0-284.11.1.el9_2
- kernel-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-cross-headers Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-uki-virt Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-doc Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-rt Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-devel Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-kvm Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-modules Fixed in 5.14.0-284.11.1.rt14.296.el9_2
21 further packages in AlmaLinux 9 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- bpftool Fixed in 7.0.0-284.11.1.el9_2
- kernel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-abi-stablelists Fixed in 5.14.0-284.11.1.el9_2
- kernel-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-cross-headers Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-uki-virt Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-doc Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-rt Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-devel Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-kvm Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-modules Fixed in 5.14.0-284.11.1.rt14.296.el9_2
21 further packages in CloudLinux 9 not shown (first 40 listed).
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 5.18.16-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.18.16-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.18.16-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1086.93~18.04.1
- linux-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1094.100~18.04.1
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1092.101~18.04.1
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-hwe-5.4 Fixed in 5.4.0-128.144~18.04.1
- linux-ibm-5.4 Fixed in 5.4.0-1034.38~18.04.1
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1084.92~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1071.81~18.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux Fixed in 5.4.0-128.144
- linux-aws Fixed in 5.4.0-1086.93
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.15 Fixed in 5.15.0-1021.25~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1094.100
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.15 Fixed in 5.15.0-1021.26~20.04.1
- linux-azure-5.8 No fix yet
- linux-bluefield Fixed in 5.4.0-1047.52
- linux-gcp Fixed in 5.4.0-1090.98
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.15 Fixed in 5.15.0-1021.28~20.04.1
- linux-gcp-5.8 No fix yet
- linux-gke Fixed in 5.4.0-1084.90
- linux-gke-5.15 Fixed in 5.15.0-1019.23~20.04.1
- linux-gkeop Fixed in 5.4.0-1054.57
- linux-gkeop-5.15 Fixed in 5.15.0-1005.7~20.04.1
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.15 Fixed in 5.15.0-50.56~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1034.38
- linux-intel-5.13 No fix yet
- linux-intel-iotg-5.15 Fixed in 5.15.0-1017.22~20.04.1
- linux-iot Fixed in 5.4.0-1005.7
- linux-kvm Fixed in 5.4.0-1076.81
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-50.56~20.04.1
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle Fixed in 5.4.0-1084.92
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.15 Fixed in 5.15.0-1019.24~20.04.1
- linux-oracle-5.8 No fix yet
6 further packages in Ubuntu 20.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux Fixed in 5.15.0-50.56
- linux-aws Fixed in 5.15.0-1021.25
- linux-azure Fixed in 5.15.0-1021.26
- linux-azure-fde Fixed in 5.15.0-1024.30.1
- linux-gcp Fixed in 5.15.0-1019.25
- linux-gke Fixed in 5.15.0-1017.20
- linux-gkeop Fixed in 5.15.0-1004.6
- linux-ibm Fixed in 5.15.0-1015.17
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg Fixed in 5.15.0-1017.22
- linux-kvm Fixed in 5.15.0-1019.23
- linux-lowlatency Fixed in 5.15.0-50.56
- linux-nvidia Fixed in 5.15.0-1015.15
- linux-oem-5.17 Fixed in 5.17.0-1030.31
- linux-oracle Fixed in 5.15.0-1019.24
- linux-raspi Fixed in 5.15.0-1016.18
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1086.93+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1094.100+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1062.70Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1092.101+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 20.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 22.04 LTS
- linux-realtime Fixed in 5.15.0-1022.22Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.