A 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.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-cross-headersUpgrade kernel-rt-debug-coreUpgrade kernel-debug-devel-matchedUpgrade bpftoolUpgrade kernel-64kUpgrade kernel-64k-debug-coreUpgrade kernel-develUpgrade perfUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-zfcpdump-coreUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-devel-matchedUpgrade kernel-64k-devel-matchedUpgrade kernel-rt-kvmUpgrade kernelUpgrade kernel-tools-libs-develUpgrade kernel-64k-debug-modules-extraUpgrade kernel-rt-modules-extraUpgrade kernel-64k-modulesUpgrade python3-perfUpgrade kernel-rt-coreUpgrade kernel-modules-extraUpgrade kernel-debug-develUpgrade kernel-rt-modules-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-64k-coreUpgrade kernel-docUpgrade rtlaUpgrade kernel-modulesUpgrade kernel-debug-modules-extraUpgrade kernel-debugUpgrade kernel-modules-coreUpgrade kernel-debug-uki-virtUpgrade kernel-64k-develUpgrade kernel-zfcpdump-modulesUpgrade kernel-coreUpgrade kernel-rt-develUpgrade kernel-64k-modules-coreUpgrade kernel-rtUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debug-modules-extraUpgrade kernel-64k-modules-extraUpgrade kernel-zfcpdumpUpgrade kernel-uki-virtUpgrade kernel-rt-debugUpgrade kernel-64k-debug-modules-coreUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-debug-develUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-modulesUpgrade kernel-debug-modulesUpgrade kernel-rt-debug-kvmUpgrade kernel-tools-libsUpgrade kernel-64k-debug-develUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-debug-modules-coreUpgrade kernel-zfcpdump-develUpgrade kernel-debug-coreUpgrade kernel-64k-debug | May 15, 2023 | Nov 28, 2022 |
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.15.93-55.139Upgrade kernel-livepatch-5.10.167-147.601Upgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-toolsUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade python-perfUpgrade perfUpgrade kernel-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-headersUpgrade python-perf-debuginfo | Feb 24, 2023 | Nov 28, 2022 |
| Centos_linux | — | Upgrade kernelUpgrade kernel-rt | May 15, 2023 | Nov 28, 2022 |
| Debian | — | Upgrade linux | May 1, 2023 | Nov 28, 2022 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-toolsUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernel | Feb 13, 2023 | Nov 28, 2022 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade python3-perf | Mar 8, 2023 | Nov 28, 2022 |
| Huawei Euleros 2_0_sp5 | — | Upgrade python-perfUpgrade kernel-toolsUpgrade kernel-headersUpgrade kernel-develUpgrade kernelUpgrade perfUpgrade kernel-tools-libs | Jun 9, 2023 | Nov 28, 2022 |
| Huawei Euleros 2_0_sp8 | — | Upgrade perfUpgrade kernel-develUpgrade python-perfUpgrade kernel-headersUpgrade kernel-toolsUpgrade bpftoolUpgrade kernelUpgrade python3-perfUpgrade kernel-tools-libs | Feb 9, 2023 | Nov 28, 2022 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Mar 17, 2023 | Aug 10, 2022 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | May 15, 2023 | Nov 28, 2022 |
| Suse | — | Upgrade dtb-xilinxUpgrade dtb-exynosUpgrade gfs2-kmp-defaultUpgrade dtb-amdUpgrade dtb-broadcomUpgrade reiserfs-kmp-64kbUpgrade kernel-default-optionalUpgrade dtb-renesasUpgrade kernel-vanilla-develUpgrade kernel-zfcpdump-manUpgrade kernel-preempt-optionalUpgrade kernel-preemptUpgrade kernel-rt_debug-develUpgrade kernel-obs-buildUpgrade kernel-rt-develUpgrade cluster-md-kmp-rtUpgrade dtb-amazonUpgrade kernel-vanilla-baseUpgrade kernel-sourceUpgrade reiserfs-kmp-preemptUpgrade dtb-alUpgrade gfs2-kmp-azureUpgrade kernel-azureUpgrade dtb-allwinnerUpgrade kernel-source-vanillaUpgrade ocfs2-kmp-azureUpgrade ocfs2-kmp-64kbUpgrade kernel-source-azureUpgrade kernel-default-livepatch-develUpgrade dtb-mediatekUpgrade dtb-nvidiaUpgrade kernel-64kb-develUpgrade cluster-md-kmp-preemptUpgrade kernel-debug-develUpgrade kselftests-kmp-preemptUpgrade dlm-kmp-preemptUpgrade kernel-default-baseUpgrade kernel-kvmsmall-baseUpgrade kernel-preempt-livepatch-develUpgrade dtb-lgUpgrade gfs2-kmp-preemptUpgrade cluster-md-kmp-64kbUpgrade kernel-64kb-extraUpgrade ocfs2-kmp-defaultUpgrade kernel-develUpgrade kernel-source-rtUpgrade kernel-64kb-optionalUpgrade kernel-devel-rtUpgrade kernel-defaultUpgrade dlm-kmp-64kbUpgrade dtb-sprdUpgrade dtb-freescaleUpgrade reiserfs-kmp-defaultUpgrade kselftests-kmp-64kbUpgrade dtb-caviumUpgrade kernel-default-livepatchUpgrade kernel-default-develUpgrade kernel-debugUpgrade reiserfs-kmp-azureUpgrade kernel-preempt-extraUpgrade dtb-zteUpgrade kernel-azure-optionalUpgrade dtb-hisiliconUpgrade kselftests-kmp-azureUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-preempt-develUpgrade dtb-alteraUpgrade dlm-kmp-rtUpgrade dtb-marvellUpgrade cluster-md-kmp-defaultUpgrade kernel-azure-extraUpgrade kernel-syms-rtUpgrade gfs2-kmp-64kbUpgrade gfs2-kmp-rtUpgrade kernel-zfcpdumpUpgrade kernel-devel-azureUpgrade kernel-vanillaUpgrade kernel-macrosUpgrade kernel-kvmsmall-develUpgrade kernel-default-manUpgrade kernel-docs-htmlUpgrade kernel-kvmsmallUpgrade kernel-debug-livepatch-develUpgrade kernel-debug-baseUpgrade ocfs2-kmp-rtUpgrade kernel-64kb-livepatch-develUpgrade kernel-syms-azureUpgrade dtb-qcomUpgrade dtb-amlogicUpgrade dtb-armUpgrade kernel-default-extraUpgrade dtb-apmUpgrade kernel-obs-qaUpgrade dlm-kmp-defaultUpgrade kselftests-kmp-defaultUpgrade dtb-appleUpgrade kernel-symsUpgrade kernel-rt_debugUpgrade kernel-azure-livepatch-develUpgrade kernel-azure-develUpgrade dtb-socionextUpgrade dlm-kmp-azureUpgrade ocfs2-kmp-preemptUpgrade kernel-64kbUpgrade dtb-rockchipUpgrade cluster-md-kmp-azureUpgrade kernel-default-base-rebuildUpgrade kernel-rtUpgrade kernel-azure-baseUpgrade kernel-docsUpgrade kernel-vanilla-livepatch-devel | Dec 19, 2022 | Nov 28, 2022 |
| Ubuntu | — | Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.4.0-1103-gcpUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-azure-cvmUpgrade linux-image-raspiUpgrade linux-image-5.4.0-1062-bluefieldUpgrade linux-image-azureUpgrade linux-image-intelUpgrade linux-image-5.4.0-1017-iotUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-70-generic-lpaeUpgrade linux-image-5.15.0-1032-gcpUpgrade linux-image-5.15.0-1028-ibmUpgrade linux-image-5.15.0-1028-intel-iotgUpgrade linux-image-5.4.0-1083-raspiUpgrade linux-image-gkeop-5.15Upgrade linux-image-oem-20.04cUpgrade linux-image-oemUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-5.4.0-147-genericUpgrade linux-image-5.4.0-1067-gkeopUpgrade linux-image-5.15.0-1030-intel-iotgUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-5.4.0-1047-ibmUpgrade linux-image-5.15.0-70-genericUpgrade linux-image-5.4.0-1106-azureUpgrade linux-image-gke-5.4Upgrade linux-image-5.4.0-147-lowlatencyUpgrade linux-image-5.15.0-1027-raspi-nolpaeUpgrade linux-image-5.19.0-1023-kvmUpgrade linux-image-bluefieldUpgrade linux-image-5.15.0-1036-azureUpgrade linux-image-oem-20.04Upgrade linux-image-5.4.0-1024-xilinx-zynqmpUpgrade linux-image-5.19.0-1025-awsUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.19.0-1026-azureUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.15.0-1033-oracleUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-5.15.0-1034-awsUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-gkeUpgrade linux-image-5.4.0-147-generic-lpaeUpgrade linux-image-oracleUpgrade linux-image-5.19.0-42-generic-lpaeUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-5.4.0-1099-oracleUpgrade linux-image-5.15.0-1031-gkeUpgrade linux-image-awsUpgrade linux-image-5.19.0-1024-lowlatencyUpgrade linux-image-5.15.0-1031-kvmUpgrade linux-image-5.4.0-1100-awsUpgrade linux-image-5.19.0-42-genericUpgrade linux-image-gkeopUpgrade linux-image-5.4.0-1089-kvmUpgrade linux-image-gcpUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.19.0-1024-lowlatency-64kUpgrade linux-image-gkeop-5.4Upgrade linux-image-gke-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-70-generic-64kUpgrade linux-image-oem-20.04dUpgrade linux-image-aws-lts-22.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-5.4.0-1097-gkeUpgrade linux-image-5.19.0-42-generic-64kUpgrade linux-image-5.19.0-1022-ibmUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-generic-hwe-18.04Upgrade linux-image-genericUpgrade linux-image-azure-fdeUpgrade linux-image-raspi2Upgrade linux-image-kvmUpgrade linux-image-generic-lpae-hwe-22.04Upgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-70-lowlatency-64kUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-oem-osp1Upgrade linux-image-gcp-lts-20.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-ibmUpgrade linux-image-5.15.0-70-lowlatencyUpgrade linux-image-aws-lts-20.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-azure-lts-20.04Upgrade linux-image-5.19.0-1023-oracleUpgrade linux-image-5.19.0-1018-raspi-nolpaeUpgrade linux-image-5.19.0-1018-raspiUpgrade linux-image-5.19.0-1024-gcpUpgrade linux-image-5.15.0-1036-azure-fdeUpgrade linux-image-5.15.0-1027-raspiUpgrade linux-image-generic-64kUpgrade linux-image-virtualUpgrade linux-image-5.15.0-1018-gkeopUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-oem-20.04b | Apr 21, 2023 | Nov 28, 2022 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Nov 28, 2022 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub