CVE-2022-4129

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Summary

CVECVE-2022-4129
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-11-28 22:15:11 UTC
Updated2026-10-14 14:17:28 UTC
DescriptionA flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: CWE-667 | CWE-667 CWE-667->CWE-362->CWE-476

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 35 All All All
Operating System Fedoraproject Fedora 36 All All All
Operating System Fedoraproject Fedora 37 All All All
Application Linux Layer 2 Tunneling Protocol All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Linux Kernel L2tp affected up to v6.0 Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected V1.1 custom Not specified

References

ReferenceSourceLinkTags
[PATCH net v4] l2tp: Serialize access to sk_user_data with sk_callback_lock af854a3a-2127-422b-91ae-364da2661108 lore.kernel.org
[SECURITY] Fedora 37 Update: kernel-6.0.11-300.fc37 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 36 Update: kernel-6.0.11-200.fc36 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 35 Update: kernel-6.0.11-100.fc35 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[PATCH net v2] l2tp: Don't sleep and disable BH under writer-side sk_callback_lock af854a3a-2127-422b-91ae-364da2661108 lore.kernel.org
cert-portal.siemens.com/productcert/html/ssa-794697.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] [DLA 3404-1] linux-5.10 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
[SECURITY] Fedora 36 Update: kernel-6.0.11-200.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 35 Update: kernel-6.0.11-100.fc35 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 37 Update: kernel-6.0.11-300.fc37 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[PATCH net v4] l2tp: Serialize access to sk_user_data with sk_callback_lock MITRE lore.kernel.org
[PATCH net v2] l2tp: Don't sleep and disable BH under writer-side sk_callback_lock MITRE lore.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160505 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12196)
  • 160551 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel-container (ELSA-2023-12256)
  • 160554 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2023-12255)
  • 160583 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-2458)
  • 160692 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-2951)
  • 181765 Debian Security Update for linux-5.10 (DLA 3404-1)
  • 183535 Debian Security Update for linux (CVE-2022-4129)
  • 199292 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6025-1)
  • 199301 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6027-1)
  • 199303 Ubuntu Security Notification for Linux kernel (HWE) Vulnerabilities (USN-6040-1)
  • 199321 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6057-1)
  • 199343 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6079-1)
  • 199353 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6091-1)
  • 199354 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6096-1)
  • 199356 Ubuntu Security Notification for Linux kernel (BlueField) Vulnerabilities (USN-6093-1)
  • 199385 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6134-1)
  • 199465 Ubuntu Security Notification for Linux kernel (Xilinx ZynqMP) Vulnerabilities (USN-6222-1)
  • 199614 Ubuntu Security Notification for Linux kernel (IoT) Vulnerabilities (USN-6256-1)
  • 241417 Red Hat Update for kernel security (RHSA-2023:2458)
  • 241468 Red Hat Update for kernel-rt (RHSA-2023:2148)
  • 241504 Red Hat Update for kernel security (RHSA-2023:2951)
  • 241527 Red Hat Update for kernel-rt (RHSA-2023:2736)
  • 242855 Red Hat Update for kernel (RHSA-2024:0412)
  • 283382 Fedora Security Update for kernel (FEDORA-2022-24041b1667)
  • 283383 Fedora Security Update for kernel (FEDORA-2022-b36cd53dca)
  • 283390 Fedora Security Update for kernel (FEDORA-2022-e4460c41bc)
  • 354775 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2023-042
  • 354829 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2023-027
  • 354831 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.15-2023-014
  • 378468 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-20230042)
  • 378473 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2023:0021)
  • 378512 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0042)
  • 6140121 AWS Bottlerocket Security Update for kernel (GHSA-6mjp-35gq-h9v5)
  • 672595 EulerOS Security Update for kernel (EulerOS-SA-2023-1320)
  • 672653 EulerOS Security Update for kernel (EulerOS-SA-2023-1388)
  • 672675 EulerOS Security Update for kernel (EulerOS-SA-2023-1409)
  • 672687 EulerOS Security Update for kernel (EulerOS-SA-2023-1424)
  • 672806 EulerOS Security Update for kernel (EulerOS-SA-2023-1526)
  • 673117 EulerOS Security Update for kernel (EulerOS-SA-2023-2152)
  • 753020 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4585-1)
  • 753034 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4504-1)
  • 753045 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4503-1)
  • 753051 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4589-1)
  • 753061 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4616-1)
  • 753062 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4613-1)
  • 753063 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:4617-1)
  • 753801 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0762-1)
  • 753806 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0770-1)
  • 753807 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0768-1)
  • 753832 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2023:0852-1)
  • 941023 AlmaLinux Security Update for kernel (ALSA-2023:2458)
  • 941061 AlmaLinux Security Update for kernel-rt (ALSA-2023:2148)
  • 941096 AlmaLinux Security Update for kernel (ALSA-2023:2951)
  • 941114 AlmaLinux Security Update for kernel-rt (ALSA-2023:2736)

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