A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
CVSS Details
- CVSS 3.1 Base Score: 8.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-kernel-tools-libs-devel | May 4, 2022 | Feb 11, 2022 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-bpftoolamazon-linux-ami-2-upgrade-bpftool-debuginfoamazon-linux-ami-2-upgrade-kernelamazon-linux-ami-2-upgrade-kernel-debuginfoamazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-kernel-develamazon-linux-ami-2-upgrade-kernel-headersamazon-linux-ami-2-upgrade-kernel-livepatch-5-10-82-83-359amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-82-83-359-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-5-10-93-87-444amazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-perfamazon-linux-ami-2-upgrade-perf-debuginfoamazon-linux-ami-2-upgrade-python-perfamazon-linux-ami-2-upgrade-python-perf-debuginfo | Jul 4, 2022 | Feb 11, 2022 | |
| Amazon_linux_2023 | amazon-linux-2023-upgrade-bpftoolamazon-linux-2023-upgrade-bpftool-debuginfoamazon-linux-2023-upgrade-kernelamazon-linux-2023-upgrade-kernel-debuginfoamazon-linux-2023-upgrade-kernel-debuginfo-common-aarch64amazon-linux-2023-upgrade-kernel-debuginfo-common-x86-64amazon-linux-2023-upgrade-kernel-develamazon-linux-2023-upgrade-kernel-headersamazon-linux-2023-upgrade-kernel-libbpfamazon-linux-2023-upgrade-kernel-libbpf-develamazon-linux-2023-upgrade-kernel-libbpf-staticamazon-linux-2023-upgrade-kernel-livepatch-6-1-10-15-42amazon-linux-2023-upgrade-kernel-toolsamazon-linux-2023-upgrade-kernel-tools-debuginfoamazon-linux-2023-upgrade-kernel-tools-develamazon-linux-2023-upgrade-perfamazon-linux-2023-upgrade-perf-debuginfoamazon-linux-2023-upgrade-python3-perfamazon-linux-2023-upgrade-python3-perf-debuginfo | Feb 17, 2025 | Jan 18, 2022 | |
| Centos_linux | — | centos-upgrade-kernelcentos-upgrade-kernel-rtcentos-upgrade-kpatch-patch-4_18_0-348centos-upgrade-kpatch-patch-4_18_0-348-debuginfocentos-upgrade-kpatch-patch-4_18_0-348-debugsourcecentos-upgrade-kpatch-patch-4_18_0-348_2_1centos-upgrade-kpatch-patch-4_18_0-348_2_1-debuginfocentos-upgrade-kpatch-patch-4_18_0-348_2_1-debugsourcecentos-upgrade-kpatch-patch-4_18_0-348_7_1centos-upgrade-kpatch-patch-4_18_0-348_7_1-debuginfocentos-upgrade-kpatch-patch-4_18_0-348_7_1-debugsource | Feb 17, 2022 | Feb 11, 2022 |
| Debian | debian-upgrade-linux | Nov 4, 2022 | Feb 11, 2022 | |
| Oracle_linux | — | oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek | Feb 15, 2022 | Jan 18, 2022 |
| Redhat_linux | redhat-upgrade-kernelredhat-upgrade-kernel-rt | Jan 20, 2022 | Jan 19, 2022 | |
| Rocky_linux | rocky-upgrade-bpftoolrocky-upgrade-bpftool-debuginforocky-upgrade-kernelrocky-upgrade-kernel-corerocky-upgrade-kernel-cross-headersrocky-upgrade-kernel-debugrocky-upgrade-kernel-debug-corerocky-upgrade-kernel-debug-debuginforocky-upgrade-kernel-debug-develrocky-upgrade-kernel-debug-modulesrocky-upgrade-kernel-debug-modules-extrarocky-upgrade-kernel-debuginforocky-upgrade-kernel-debuginfo-common-x86_64rocky-upgrade-kernel-develrocky-upgrade-kernel-headersrocky-upgrade-kernel-modulesrocky-upgrade-kernel-modules-extrarocky-upgrade-kernel-rtrocky-upgrade-kernel-rt-corerocky-upgrade-kernel-rt-debugrocky-upgrade-kernel-rt-debug-corerocky-upgrade-kernel-rt-debug-debuginforocky-upgrade-kernel-rt-debug-develrocky-upgrade-kernel-rt-debug-modulesrocky-upgrade-kernel-rt-debug-modules-extrarocky-upgrade-kernel-rt-debuginforocky-upgrade-kernel-rt-debuginfo-common-x86_64rocky-upgrade-kernel-rt-develrocky-upgrade-kernel-rt-kvmrocky-upgrade-kernel-rt-modulesrocky-upgrade-kernel-rt-modules-extrarocky-upgrade-kernel-toolsrocky-upgrade-kernel-tools-debuginforocky-upgrade-kernel-tools-libsrocky-upgrade-kernel-tools-libs-develrocky-upgrade-perfrocky-upgrade-perf-debuginforocky-upgrade-python3-perfrocky-upgrade-python3-perf-debuginfo | May 5, 2022 | Feb 11, 2022 | |
| Suse | — | suse-upgrade-cluster-md-kmp-64kbsuse-upgrade-cluster-md-kmp-azuresuse-upgrade-cluster-md-kmp-defaultsuse-upgrade-cluster-md-kmp-preemptsuse-upgrade-dlm-kmp-64kbsuse-upgrade-dlm-kmp-azuresuse-upgrade-dlm-kmp-defaultsuse-upgrade-dlm-kmp-preemptsuse-upgrade-dtb-alsuse-upgrade-dtb-allwinnersuse-upgrade-dtb-alterasuse-upgrade-dtb-amdsuse-upgrade-dtb-amlogicsuse-upgrade-dtb-apmsuse-upgrade-dtb-armsuse-upgrade-dtb-broadcomsuse-upgrade-dtb-caviumsuse-upgrade-dtb-exynossuse-upgrade-dtb-freescalesuse-upgrade-dtb-hisiliconsuse-upgrade-dtb-lgsuse-upgrade-dtb-marvellsuse-upgrade-dtb-mediateksuse-upgrade-dtb-nvidiasuse-upgrade-dtb-qcomsuse-upgrade-dtb-renesassuse-upgrade-dtb-rockchipsuse-upgrade-dtb-socionextsuse-upgrade-dtb-sprdsuse-upgrade-dtb-xilinxsuse-upgrade-dtb-ztesuse-upgrade-gfs2-kmp-64kbsuse-upgrade-gfs2-kmp-azuresuse-upgrade-gfs2-kmp-defaultsuse-upgrade-gfs2-kmp-preemptsuse-upgrade-kernel-64kbsuse-upgrade-kernel-64kb-develsuse-upgrade-kernel-64kb-extrasuse-upgrade-kernel-64kb-livepatch-develsuse-upgrade-kernel-64kb-optionalsuse-upgrade-kernel-azuresuse-upgrade-kernel-azure-develsuse-upgrade-kernel-azure-extrasuse-upgrade-kernel-azure-livepatch-develsuse-upgrade-kernel-azure-optionalsuse-upgrade-kernel-debugsuse-upgrade-kernel-debug-develsuse-upgrade-kernel-debug-livepatch-develsuse-upgrade-kernel-defaultsuse-upgrade-kernel-default-basesuse-upgrade-kernel-default-base-rebuildsuse-upgrade-kernel-default-develsuse-upgrade-kernel-default-extrasuse-upgrade-kernel-default-livepatchsuse-upgrade-kernel-default-livepatch-develsuse-upgrade-kernel-default-optionalsuse-upgrade-kernel-develsuse-upgrade-kernel-devel-azuresuse-upgrade-kernel-docssuse-upgrade-kernel-docs-htmlsuse-upgrade-kernel-kvmsmallsuse-upgrade-kernel-kvmsmall-develsuse-upgrade-kernel-kvmsmall-livepatch-develsuse-upgrade-kernel-macrossuse-upgrade-kernel-obs-buildsuse-upgrade-kernel-obs-qasuse-upgrade-kernel-preemptsuse-upgrade-kernel-preempt-develsuse-upgrade-kernel-preempt-extrasuse-upgrade-kernel-preempt-livepatch-develsuse-upgrade-kernel-preempt-optionalsuse-upgrade-kernel-sourcesuse-upgrade-kernel-source-azuresuse-upgrade-kernel-source-vanillasuse-upgrade-kernel-symssuse-upgrade-kernel-syms-azuresuse-upgrade-kernel-zfcpdumpsuse-upgrade-kselftests-kmp-64kbsuse-upgrade-kselftests-kmp-azuresuse-upgrade-kselftests-kmp-defaultsuse-upgrade-kselftests-kmp-preemptsuse-upgrade-ocfs2-kmp-64kbsuse-upgrade-ocfs2-kmp-azuresuse-upgrade-ocfs2-kmp-defaultsuse-upgrade-ocfs2-kmp-preemptsuse-upgrade-reiserfs-kmp-64kbsuse-upgrade-reiserfs-kmp-azuresuse-upgrade-reiserfs-kmp-defaultsuse-upgrade-reiserfs-kmp-preempt | Feb 12, 2022 | Jan 28, 2022 |
| Ubuntu | ubuntu-upgrade-linux-image-5-10-0-1057-oemubuntu-upgrade-linux-image-5-11-0-1024-kvmubuntu-upgrade-linux-image-5-11-0-1027-awsubuntu-upgrade-linux-image-5-11-0-1027-azureubuntu-upgrade-linux-image-5-11-0-1027-oracleubuntu-upgrade-linux-image-5-11-0-1027-raspiubuntu-upgrade-linux-image-5-11-0-1027-raspi-nolpaeubuntu-upgrade-linux-image-5-11-0-1028-gcpubuntu-upgrade-linux-image-5-11-0-49-genericubuntu-upgrade-linux-image-5-11-0-49-generic-64kubuntu-upgrade-linux-image-5-11-0-49-generic-lpaeubuntu-upgrade-linux-image-5-11-0-49-lowlatencyubuntu-upgrade-linux-image-5-13-0-1010-intelubuntu-upgrade-linux-image-5-13-0-1010-kvmubuntu-upgrade-linux-image-5-13-0-1011-awsubuntu-upgrade-linux-image-5-13-0-1012-azureubuntu-upgrade-linux-image-5-13-0-1012-gcpubuntu-upgrade-linux-image-5-13-0-1015-oracleubuntu-upgrade-linux-image-5-13-0-1015-raspiubuntu-upgrade-linux-image-5-13-0-1015-raspi-nolpaeubuntu-upgrade-linux-image-5-13-0-1028-oemubuntu-upgrade-linux-image-5-13-0-27-genericubuntu-upgrade-linux-image-5-13-0-27-generic-64kubuntu-upgrade-linux-image-5-13-0-27-generic-lpaeubuntu-upgrade-linux-image-5-13-0-27-lowlatencyubuntu-upgrade-linux-image-5-14-0-1020-oemubuntu-upgrade-linux-image-5-4-0-1012-ibmubuntu-upgrade-linux-image-5-4-0-1025-bluefieldubuntu-upgrade-linux-image-5-4-0-1031-gkeopubuntu-upgrade-linux-image-5-4-0-1050-raspiubuntu-upgrade-linux-image-5-4-0-1053-kvmubuntu-upgrade-linux-image-5-4-0-1059-gkeubuntu-upgrade-linux-image-5-4-0-1061-oracleubuntu-upgrade-linux-image-5-4-0-1062-gcpubuntu-upgrade-linux-image-5-4-0-1067-azureubuntu-upgrade-linux-image-5-4-0-96-genericubuntu-upgrade-linux-image-5-4-0-96-generic-lpaeubuntu-upgrade-linux-image-5-4-0-96-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-lts-20-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-upgrade-linux-image-bluefieldubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-ibmubuntu-upgrade-linux-image-ibm-lts-20-04ubuntu-upgrade-linux-image-intelubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-20-04cubuntu-upgrade-linux-image-oem-20-04dubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-18-04 | Apr 1, 2022 | Feb 11, 2022 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Feb 11, 2022 |
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