Resource management error in Linux kernel - CVE-2021-47014

Vulnerability identifier: #VU93211

CSH Severity: Low

CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47014

CWE-ID: CWE-399

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the tcf_ct_handle_fragments(), tcf_ct_act() and skb_push_rcsum() functions in net/sched/act_ct.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Enterprise Storage
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 LTSS
openSUSE Leap
openEuler
kernel-livepatch-5_3_18-150300_59_158-default-debuginfo
kernel-livepatch-5_3_18-150300_59_158-default
kernel-livepatch-SLE15-SP3_Update_43-debugsource
kernel-livepatch-5_3_18-150300_59_158-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_158-preempt
kernel-preempt-extra
dlm-kmp-default-debuginfo
dlm-kmp-preempt-debuginfo
kernel-preempt-optional
dlm-kmp-preempt
reiserfs-kmp-preempt
cluster-md-kmp-preempt-debuginfo
gfs2-kmp-default
gfs2-kmp-preempt-debuginfo
kernel-preempt-extra-debuginfo
ocfs2-kmp-preempt
kernel-preempt-optional-debuginfo
kselftests-kmp-preempt
reiserfs-kmp-preempt-debuginfo
gfs2-kmp-preempt
kernel-preempt-livepatch-devel
cluster-md-kmp-preempt
ocfs2-kmp-preempt-debuginfo
dlm-kmp-default
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-debuginfo
kernel-debug-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-debug-debugsource
kernel-kvmsmall-devel-debuginfo
kselftests-kmp-default
cluster-md-kmp-default
ocfs2-kmp-default
kernel-default-extra
kselftests-kmp-preempt-debuginfo
kernel-default-livepatch
kernel-default-livepatch-devel
kselftests-kmp-default-debuginfo
kernel-default-extra-debuginfo
kernel-default-optional
kernel-default-optional-debuginfo
ocfs2-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
kernel-obs-qa
cluster-md-kmp-default-debuginfo
kernel-64kb-optional
kernel-64kb-optional-debuginfo
dtb-socionext
dtb-mediatek
ocfs2-kmp-64kb
kernel-64kb-extra-debuginfo
dtb-marvell
gfs2-kmp-64kb
dtb-cavium
dtb-zte
dlm-kmp-64kb-debuginfo
kernel-64kb-livepatch-devel
reiserfs-kmp-64kb-debuginfo
dtb-arm
kernel-64kb-extra
dtb-rockchip
reiserfs-kmp-64kb
ocfs2-kmp-64kb-debuginfo
cluster-md-kmp-64kb-debuginfo
dlm-kmp-64kb
dtb-apm
dtb-nvidia
dtb-amlogic
dtb-hisilicon
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
dtb-aarch64
dtb-qcom
dtb-sprd
dtb-renesas
dtb-freescale
kselftests-kmp-64kb
dtb-allwinner
kernel-kvmsmall-devel
gfs2-kmp-64kb-debuginfo
dtb-lg
dtb-altera
dtb-amd
dtb-exynos
dtb-xilinx
kselftests-kmp-64kb-debuginfo
dtb-al
dtb-broadcom
cluster-md-kmp-64kb
kernel-debug-devel
kernel-default
kernel-syms
kernel-obs-build-debugsource
reiserfs-kmp-default
reiserfs-kmp-default-debuginfo
kernel-default-debugsource
kernel-default-debuginfo
kernel-obs-build
kernel-default-devel
kernel-default-devel-debuginfo
kernel-macros
kernel-devel
kernel-source
kernel-docs
kernel-preempt
kernel-preempt-devel-debuginfo
kernel-preempt-debuginfo
kernel-debug-livepatch-devel
kernel-debug-debuginfo
kernel-debug
kernel-kvmsmall
kernel-source-vanilla
kernel-docs-html
kernel-64kb-debuginfo
kernel-64kb-devel-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel
kernel-64kb
kernel-preempt-devel
kernel-preempt-debugsource
kernel-default-base
kernel-default-base-rebuild
kernel-rt-debuginfo
kernel-rt
kernel-rt-debugsource
kernel-source-rt
python3-perf
python3-perf-debuginfo
perf
kernel-headers
kernel-tools-devel
kernel-debuginfo
kernel-tools
bpftool
kernel-tools-debuginfo
kernel-debugsource
perf-debuginfo
kernel
bpftool-debuginfo

Install update from vendor's website.

Linux kernel - addressed in versions 5.12.4, 5.13
kernel-livepatch-5_3_18-150300_59_158-default-debuginfo - update to 1-150300.7.3.5
kernel-livepatch-5_3_18-150300_59_158-default - update to 1-150300.7.3.5
kernel-livepatch-SLE15-SP3_Update_43-debugsource - update to 1-150300.7.3.5
kernel-livepatch-5_3_18-150300_59_158-preempt-debuginfo - update to 1-150300.7.3.5
kernel-livepatch-5_3_18-150300_59_158-preempt - update to 1-150300.7.3.5
kernel-preempt-extra - update to 5.3.18-150300.59.158.1
dlm-kmp-default-debuginfo - update to 5.3.18-150300.59.158.1
dlm-kmp-preempt-debuginfo - update to 5.3.18-150300.59.158.1
kernel-preempt-optional - update to 5.3.18-150300.59.158.1
dlm-kmp-preempt - update to 5.3.18-150300.59.158.1
reiserfs-kmp-preempt - update to 5.3.18-150300.59.158.1
cluster-md-kmp-preempt-debuginfo - update to 5.3.18-150300.59.158.1
gfs2-kmp-default - update to 5.3.18-150300.59.158.1
gfs2-kmp-preempt-debuginfo - update to 5.3.18-150300.59.158.1
kernel-preempt-extra-debuginfo - update to 5.3.18-150300.59.158.1
ocfs2-kmp-preempt - update to 5.3.18-150300.59.158.1
kernel-preempt-optional-debuginfo - update to 5.3.18-150300.59.158.1
kselftests-kmp-preempt - update to 5.3.18-150300.59.158.1
reiserfs-kmp-preempt-debuginfo - update to 5.3.18-150300.59.158.1
gfs2-kmp-preempt - update to 5.3.18-150300.59.158.1
kernel-preempt-livepatch-devel - update to 5.3.18-150300.59.158.1
cluster-md-kmp-preempt - update to 5.3.18-150300.59.158.1
ocfs2-kmp-preempt-debuginfo - update to 5.3.18-150300.59.158.1
dlm-kmp-default - update to 5.3.18-150300.59.158.1
kernel-kvmsmall-livepatch-devel - update to 5.3.18-150300.59.158.1
kernel-kvmsmall-debuginfo - update to 5.3.18-150300.59.158.1
kernel-debug-devel-debuginfo - update to 5.3.18-150300.59.158.1
kernel-kvmsmall-debugsource - update to 5.3.18-150300.59.158.1
kernel-debug-debugsource - update to 5.3.18-150300.59.158.1
kernel-kvmsmall-devel-debuginfo - update to 5.3.18-150300.59.158.1
kselftests-kmp-default - update to 5.3.18-150300.59.158.1
cluster-md-kmp-default - update to 5.3.18-150300.59.158.1
ocfs2-kmp-default - update to 5.3.18-150300.59.158.1
kernel-default-extra - update to 5.3.18-150300.59.158.1
kselftests-kmp-preempt-debuginfo - update to 5.3.18-150300.59.158.1
kernel-default-livepatch - update to 5.3.18-150300.59.158.1
kernel-default-livepatch-devel - update to 5.3.18-150300.59.158.1
kselftests-kmp-default-debuginfo - update to 5.3.18-150300.59.158.1
kernel-default-extra-debuginfo - update to 5.3.18-150300.59.158.1
kernel-default-optional - update to 5.3.18-150300.59.158.1
kernel-default-optional-debuginfo - update to 5.3.18-150300.59.158.1
ocfs2-kmp-default-debuginfo - update to 5.3.18-150300.59.158.1
gfs2-kmp-default-debuginfo - update to 5.3.18-150300.59.158.1
kernel-obs-qa - update to 5.3.18-150300.59.158.1
cluster-md-kmp-default-debuginfo - update to 5.3.18-150300.59.158.1
kernel-64kb-optional - update to 5.3.18-150300.59.158.1
kernel-64kb-optional-debuginfo - update to 5.3.18-150300.59.158.1
dtb-socionext - update to 5.3.18-150300.59.158.1
dtb-mediatek - update to 5.3.18-150300.59.158.1
ocfs2-kmp-64kb - update to 5.3.18-150300.59.158.1
kernel-64kb-extra-debuginfo - update to 5.3.18-150300.59.158.1
dtb-marvell - update to 5.3.18-150300.59.158.1
gfs2-kmp-64kb - update to 5.3.18-150300.59.158.1
dtb-cavium - update to 5.3.18-150300.59.158.1
dtb-zte - update to 5.3.18-150300.59.158.1
dlm-kmp-64kb-debuginfo - update to 5.3.18-150300.59.158.1
kernel-64kb-livepatch-devel - update to 5.3.18-150300.59.158.1
reiserfs-kmp-64kb-debuginfo - update to 5.3.18-150300.59.158.1
dtb-arm - update to 5.3.18-150300.59.158.1
kernel-64kb-extra - update to 5.3.18-150300.59.158.1
dtb-rockchip - update to 5.3.18-150300.59.158.1
reiserfs-kmp-64kb - update to 5.3.18-150300.59.158.1
ocfs2-kmp-64kb-debuginfo - update to 5.3.18-150300.59.158.1
cluster-md-kmp-64kb-debuginfo - update to 5.3.18-150300.59.158.1
dlm-kmp-64kb - update to 5.3.18-150300.59.158.1
dtb-apm - update to 5.3.18-150300.59.158.1
dtb-nvidia - update to 5.3.18-150300.59.158.1
dtb-amlogic - update to 5.3.18-150300.59.158.1
dtb-hisilicon - update to 5.3.18-150300.59.158.1
kernel-zfcpdump - update to 5.3.18-150300.59.158.1
kernel-zfcpdump-debuginfo - update to 5.3.18-150300.59.158.1
kernel-zfcpdump-debugsource - update to 5.3.18-150300.59.158.1
dtb-aarch64 - update to 5.3.18-150300.59.158.1
dtb-qcom - update to 5.3.18-150300.59.158.1
dtb-sprd - update to 5.3.18-150300.59.158.1
dtb-renesas - update to 5.3.18-150300.59.158.1
dtb-freescale - update to 5.3.18-150300.59.158.1
kselftests-kmp-64kb - update to 5.3.18-150300.59.158.1
dtb-allwinner - update to 5.3.18-150300.59.158.1
kernel-kvmsmall-devel - update to 5.3.18-150300.59.158.1
gfs2-kmp-64kb-debuginfo - update to 5.3.18-150300.59.158.1
dtb-lg - update to 5.3.18-150300.59.158.1
dtb-altera - update to 5.3.18-150300.59.158.1
dtb-amd - update to 5.3.18-150300.59.158.1
dtb-exynos - update to 5.3.18-150300.59.158.1
dtb-xilinx - update to 5.3.18-150300.59.158.1
kselftests-kmp-64kb-debuginfo - update to 5.3.18-150300.59.158.1
dtb-al - update to 5.3.18-150300.59.158.1
dtb-broadcom - update to 5.3.18-150300.59.158.1
cluster-md-kmp-64kb - update to 5.3.18-150300.59.158.1
kernel-debug-devel - update to 5.3.18-150300.59.158.1
kernel-default - update to 5.3.18-150300.59.158.1
kernel-syms - update to 5.3.18-150300.59.158.1
kernel-obs-build-debugsource - update to 5.3.18-150300.59.158.1
reiserfs-kmp-default - update to 5.3.18-150300.59.158.1
reiserfs-kmp-default-debuginfo - update to 5.3.18-150300.59.158.1
kernel-default-debugsource - update to 5.3.18-150300.59.158.1
kernel-default-debuginfo - update to 5.3.18-150300.59.158.1
kernel-obs-build - update to 5.3.18-150300.59.158.1
kernel-default-devel - update to 5.3.18-150300.59.158.1
kernel-default-devel-debuginfo - update to 5.3.18-150300.59.158.1
kernel-macros - update to 5.3.18-150300.59.158.1
kernel-devel - update to 5.3.18-150300.59.158.1
kernel-source - update to 5.3.18-150300.59.158.1
kernel-docs - update to 5.3.18-150300.59.158.1
kernel-preempt - update to 5.3.18-150300.59.158.1
kernel-preempt-devel-debuginfo - update to 5.3.18-150300.59.158.1
kernel-preempt-debuginfo - update to 5.3.18-150300.59.158.1
kernel-debug-livepatch-devel - update to 5.3.18-150300.59.158.1
kernel-debug-debuginfo - update to 5.3.18-150300.59.158.1
kernel-debug - update to 5.3.18-150300.59.158.1
kernel-kvmsmall - update to 5.3.18-150300.59.158.1
kernel-source-vanilla - update to 5.3.18-150300.59.158.1
kernel-docs-html - update to 5.3.18-150300.59.158.1
kernel-64kb-debuginfo - update to 5.3.18-150300.59.158.1
kernel-64kb-devel-debuginfo - update to 5.3.18-150300.59.158.1
kernel-64kb-debugsource - update to 5.3.18-150300.59.158.1
kernel-64kb-devel - update to 5.3.18-150300.59.158.1
kernel-64kb - update to 5.3.18-150300.59.158.1
kernel-preempt-devel - update to 5.3.18-150300.59.158.1
kernel-preempt-debugsource - update to 5.3.18-150300.59.158.1
kernel-default-base - update to 5.3.18-150300.59.158.1.150300.18.92.5
kernel-default-base-rebuild - update to 5.3.18-150300.59.158.1.150300.18.92.5
kernel-rt-debuginfo - update to 5.3.18-150300.166.1
kernel-rt - update to 5.3.18-150300.166.1
kernel-rt-debugsource - update to 5.3.18-150300.166.1
kernel-source-rt - update to 5.3.18-150300.166.1
kernel-devel - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
python3-perf - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
python3-perf-debuginfo - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
perf - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
kernel-headers - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
kernel-tools-devel - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
kernel-source - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
kernel-debuginfo - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
kernel-tools - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
bpftool - update to 5.10.0-60.131.0.158
kernel-tools-debuginfo - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
kernel-debugsource - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
perf-debuginfo - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
kernel - addressed in versions 5.10.0-60.131.0.158, 5.10.0-136.69.0.149, 5.10.0-153.48.0.126, 5.10.0-193.0.0.106
bpftool-debuginfo - update to 5.10.0-60.131.0.158

• https://git.kernel.org/stable/c/0648941f4c8bbf8b4b6c0b270889ae7aa769b921
• https://git.kernel.org/stable/c/f77bd544a6bbe69aa50d9ed09f13494cf36ff806
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13

• Resource management error in Linux kernel sched
• openEuler 22.03 LTS SP3 update for kernel
• openEuler 22.03 LTS update for kernel
• openEuler 22.03 LTS SP1 update for kernel
• openEuler 22.03 LTS SP2 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel