CVE-2022-4128
A NULL pointer dereference issue was discovered in the Linux kernel in the MPTCP protocol when traversing the subflow list at disconnect time. A local user could use this flaw to potentially crash the
02 Description
A NULL pointer dereference issue was discovered in the Linux kernel in the MPTCP protocol when traversing the subflow list at disconnect time. A local user could use this flaw to potentially crash the
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 ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.24% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 15.6% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- 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
- 2022-11-28 00:00Z3 YR AGO
- Last updated
- 2025-04-14 18:08Z1 YR AGO
- Reserved
- 2022-11-23
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.5)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- 97f43e611783819b718d8a9e954c1ae858674509063cebde0708c34a4232cd3f
05 Affected products
06 References
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 5.18.14-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.18.14-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.18.14-1
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-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- 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-edge No fix yet
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.8 No fix yet
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.8 No fix yet
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.8 No fix yet
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.8 No fix yet
- linux-intel-5.13 No fix yet
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.8 No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.11 No fix yet
- linux-riscv-5.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-oem-5.17 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.
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.