Use-after-free in Linux kernel - CVE-2023-4623

 

Use-after-free in Linux kernel - CVE-2023-4623

Published: October 5, 2023


Vulnerability identifier: #VU81664
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-4623
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Affected software:
Linux kernel
Amazon Linux AMI
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Manager Proxy
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE CaaS Platform
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
Anolis OS
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
SUSE Enterprise Storage
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
Ubuntu
Slackware Linux
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP2 Business Critical Linux
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 LTSS
SUSE Real Time Module
Legacy Module
Development Tools Module
Basesystem Module
Public Cloud Module
openSUSE Leap
openEuler
Oracle VM Server for x86
OpenShift Logging
Session Smart Router
IBM Security Verify Governance
Red Hat OpenShift Container Platform
RecoverPoint for Virtual Machines
IBM Qradar SIEM
Juniper Secure Analytics (JSA)
Dell EMC NetWorker vProxy
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
linux-image-oracle (Ubuntu package)
linux-image-5.4.0-1112-aws (Ubuntu package)
linux-image-5.4.0-1111-oracle (Ubuntu package)
linux-image-5.4.0-1059-ibm (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-5.4.0-1118-azure (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-4.4.0-1125-kvm (Ubuntu package)
linux-image-4.4.0-1162-aws (Ubuntu package)
linux-image-4.4.0-246-generic (Ubuntu package)
linux-image-4.4.0-246-lowlatency (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-4.15.0-1171-azure (Ubuntu package)
linux-image-4.15.0-1162-aws (Ubuntu package)
linux-image-4.15.0-1156-gcp (Ubuntu package)
linux-image-4.15.0-1146-kvm (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-5.4.0-165-lowlatency (Ubuntu package)
linux-image-5.4.0-165-generic (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-generic-lts-trusty (Ubuntu package)
linux-image-3.13.0-194-lowlatency (Ubuntu package)
linux-image-3.13.0-194-generic (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-4.15.0-219-generic (Ubuntu package)
linux-image-4.15.0-219-lowlatency (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-5.4.0-1096-raspi (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-4.15.0-1125-oracle (Ubuntu package)
linux-image-server (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-5.4.0-1116-gcp (Ubuntu package)
linux-image-4.4.0-1124-aws (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
kpatch-patch-4_18_0-193_120_1 (Red Hat package)
kpatch-patch-4_18_0-305_114_1 (Red Hat package)
kpatch-patch-4_18_0-372_80_1 (Red Hat package)
kpatch-patch-4_18_0-477_36_1 (Red Hat package)
kpatch-patch-4_18_0-513_11_1 (Red Hat package)
kpatch-patch-5_14_0-70_80_1 (Red Hat package)
kpatch-patch-5_14_0-284_40_1 (Red Hat package)
kpatch-patch-5_14_0-362_13_1 (Red Hat package)
kpatch-patch-3_10_0-1160_108_1 (Red Hat package)
kpatch-patch-4_18_0-193_119_1 (Red Hat package)
kpatch-patch-4_18_0-305_108_1 (Red Hat package)
kpatch-patch-4_18_0-372_75_1 (Red Hat package)
kpatch-patch-4_18_0-477_27_1 (Red Hat package)
kpatch-patch-4_18_0-513_9_1 (Red Hat package)
kpatch-patch-5_14_0-70_75_1 (Red Hat package)
kpatch-patch-5_14_0-284_30_1 (Red Hat package)
kpatch-patch-5_14_0-362_8_1 (Red Hat package)
kpatch-patch-3_10_0-1160_105_1 (Red Hat package)
kpatch-patch-4_18_0-193_116_1 (Red Hat package)
kpatch-patch-4_18_0-305_103_1 (Red Hat package)
kpatch-patch-4_18_0-372_70_1 (Red Hat package)
kpatch-patch-4_18_0-477_21_1 (Red Hat package)
kpatch-patch-4_18_0-513_5_1 (Red Hat package)
kpatch-patch-5_14_0-70_70_1 (Red Hat package)
kpatch-patch-3_10_0-1160_102_1 (Red Hat package)
kpatch-patch-4_18_0-193_113_1 (Red Hat package)
kpatch-patch-4_18_0-305_97_1 (Red Hat package)
kpatch-patch-4_18_0-372_64_1 (Red Hat package)
kpatch-patch-5_14_0-70_64_1 (Red Hat package)
kpatch-patch-5_14_0-284_25_1 (Red Hat package)
kpatch-patch-5_14_0-284_18_1 (Red Hat package)
kgraft-patch-4_12_14-122_179-default
kernel-livepatch-4_12_14-150100_197_160-default
kernel-livepatch-SLE15-SP2_Update_41-debugsource
kernel-livepatch-5_3_18-150200_24_166-default-debuginfo
kernel-livepatch-5_3_18-150200_24_166-default
kernel-livepatch-5_3_18-150300_59_138-default
kernel-livepatch-SLE15-SP4-RT_Update_14-debugsource
kernel-livepatch-5_14_21-150400_15_56-rt
kernel-livepatch-5_14_21-150400_15_56-rt-debuginfo
kernel-livepatch-SLE15-SP4_Update_19-debugsource
kernel-livepatch-5_14_21-150400_24_92-default
kernel-livepatch-5_14_21-150400_24_92-default-debuginfo
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kernel-livepatch-5_14_21-150500_13_21-rt
kernel-livepatch-5_14_21-150500_55_31-default
kgraft-patch-4_12_14-122_176-default
kernel-livepatch-4_12_14-150100_197_157-default
kernel-livepatch-SLE15-SP2_Update_40-debugsource
kernel-livepatch-5_3_18-150200_24_163-default
kernel-livepatch-5_3_18-150200_24_163-default-debuginfo
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kernel-livepatch-SLE15-SP3_Update_36-debugsource
kernel-livepatch-5_3_18-150300_59_133-default
kernel-livepatch-5_3_18-150300_59_133-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_133-preempt
kernel-livepatch-5_14_21-150400_15_53-rt
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kernel-livepatch-5_14_21-150400_24_88-default
kernel-livepatch-SLE15-SP4_Update_18-debugsource
kernel-livepatch-5_14_21-150400_15_53-rt-debuginfo
kernel-livepatch-SLE15-SP4-RT_Update_13-debugsource
kernel-livepatch-5_14_21-150500_13_18-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_18-rt
kernel-livepatch-SLE15-SP5-RT_Update_5-debugsource
kernel-livepatch-5_14_21-150500_55_28-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_5-debugsource
kernel-livepatch-5_14_21-150500_55_28-default
kernel-default-devel
kernel-default-base
kernel-source
kernel-xen-devel
kernel-trace-devel
kernel-syms
kernel-ec2-devel
kernel-xen-base
kernel-ec2-base
kernel-xen
kernel-trace-base
kernel-trace
kernel-default
kernel-ec2
kgraft-patch-4_12_14-122_173-default
kernel (Red Hat package)
kernel-rt (Red Hat package)
perf
bpftool
kernel
kernel-debug
kernel-debug-devel
kernel-devel
kernel-headers
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
python-perf
kernel-abi-whitelists
kernel-doc
kernel-livepatch-4_12_14-150100_197_154-default
kernel-livepatch-5_3_18-150200_24_160-default
kernel-livepatch-5_3_18-150200_24_160-default-debuginfo
kernel-livepatch-SLE15-SP2_Update_39-debugsource
kernel-livepatch-SLE15-SP3_Update_35-debugsource
kernel-livepatch-5_3_18-150300_59_130-preempt
kernel-livepatch-5_3_18-150300_59_130-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_130-default-debuginfo
kernel-livepatch-5_3_18-150300_59_130-default
kernel-livepatch-5_14_21-150400_24_81-default
kernel-livepatch-5_14_21-150400_24_81-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_16-debugsource
kernel-livepatch-5_14_21-150400_15_46-rt-debuginfo
kernel-livepatch-SLE15-SP4-RT_Update_11-debugsource
kernel-livepatch-5_14_21-150400_15_46-rt
kernel-livepatch-5_14_21-150500_55_19-default
kernel-livepatch-SLE15-SP5-RT_Update_3-debugsource
kernel-livepatch-5_14_21-150500_13_11-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_11-rt
kernel-livepatch-5_14_21-150500_55_19-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_3-debugsource
kgraft-patch-4_12_14-122_165-default
kernel-rt_debug
kernel-rt
kernel-source-rt
kernel-devel-rt
kernel-rt-debuginfo
ocfs2-kmp-rt
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-base
kernel-rt_debug-devel
kernel-rt-debugsource
kernel-rt_debug-devel-debuginfo
kernel-rt-base-debuginfo
kernel-rt_debug-debugsource
dlm-kmp-rt
gfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
cluster-md-kmp-rt-debuginfo
kernel-syms-rt
kernel-rt_debug-debuginfo
kernel-rt-devel-debuginfo
kernel-azure
kernel-devel-azure
kernel-source-azure
kernel-azure-base-debuginfo
kernel-syms-azure
kernel-azure-debugsource
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-base
kernel-default-extra-debuginfo
gfs2-kmp-default
kernel-default-debuginfo
kernel-default-kgraft-devel
kernel-default-debugsource
kernel-default-kgraft
kernel-docs
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-base-debuginfo
kernel-macros
kernel-default-extra
dlm-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
ocfs2-kmp-default
kernel-default-man
kernel-default-devel-debuginfo
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-zfcpdump-man
kernel-vanilla-devel
kernel-zfcpdump
kernel-kvmsmall
kernel-debug-base
kernel-debug-base-debuginfo
kernel-vanilla-debuginfo
kernel-vanilla-base
kernel-default-livepatch
kernel-vanilla-livepatch-devel
kernel-vanilla-base-debuginfo
kernel-vanilla-devel-debuginfo
kernel-vanilla-debugsource
kernel-kvmsmall-base-debuginfo
kernel-kvmsmall-base
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kernel-default-livepatch-devel
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kernel-modules
python3-perf
kernel-core
kernel-cross-headers
kernel-debug-core
kernel-abi-stablelists
kernel-debug-modules
kernel-debug-modules-extra
python2-perf
kernel-tools-debuginfo
kernel-debugsource
bpftool-debuginfo
kernel-tools-devel
perf-debuginfo
kernel-debuginfo
python2-perf-debuginfo
python3-perf-debuginfo
kernel-modules-internal
kernel-livepatch-4_12_14-150100_197_151-default
kernel-livepatch-5_3_18-150200_24_157-default-debuginfo
kernel-livepatch-5_3_18-150200_24_157-default
kernel-livepatch-SLE15-SP2_Update_38-debugsource
kernel-livepatch-5_3_18-150300_59_127-default
kernel-livepatch-5_3_18-150300_59_127-preempt
kernel-livepatch-5_3_18-150300_59_127-preempt-debuginfo
kernel-livepatch-SLE15-SP3_Update_34-debugsource
kernel-livepatch-5_3_18-150300_59_127-default-debuginfo
kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo
kernel-livepatch-5_14_21-150400_24_74-default
kernel-livepatch-SLE15-SP4-RT_Update_8-debugsource
kernel-livepatch-5_14_21-150400_15_37-rt-debuginfo
kernel-livepatch-5_14_21-150400_15_37-rt
kernel-livepatch-SLE15-SP4_Update_15-debugsource
kernel-livepatch-5_14_21-150400_24_74-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_14-debugsource
kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource
kernel-livepatch-5_14_21-150400_24_69-default
kernel-livepatch-5_14_21-150400_24_69-default-debuginfo
kernel-livepatch-5_14_21-150400_15_40-rt
kernel-livepatch-5_14_21-150500_55_12-default
kernel-livepatch-5_14_21-150500_55_12-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_2-debugsource
kernel-livepatch-5_14_21-150500_13_5-rt-debuginfo
kernel-livepatch-SLE15-SP5-RT_Update_1-debugsource
kernel-livepatch-5_14_21-150500_13_5-rt
kernel-livepatch-5_14_21-150500_55_7-default
kernel-livepatch-5_14_21-150500_55_7-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_1-debugsource
kgraft-patch-4_12_14-122_162-default
kernel-preempt-debugsource
kernel-preempt-devel-debuginfo
kernel-preempt
kernel-preempt-devel
kernel-preempt-debuginfo
kernel-64kb-debuginfo
kernel-64kb-devel
kernel-64kb-debugsource
kernel-64kb-devel-debuginfo
kernel-64kb
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-165-generic-lpae (Ubuntu package)
linux-image-5.4.0-1024-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1032-xilinx-zynqmp (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1073-bluefield (Ubuntu package)
linux-image-gkeop-5.4 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.4.0-1079-gkeop (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-5.4.0-1101-kvm (Ubuntu package)
linux-image-oracle-lts-20.04 (Ubuntu package)
linux-image-aws-lts-20.04 (Ubuntu package)
linux-image-gcp-lts-20.04 (Ubuntu package)
linux-image-azure-lts-20.04 (Ubuntu package)
reiserfs-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
gfs2-kmp-azure
reiserfs-kmp-azure
dlm-kmp-azure
kernel-azure-extra
kernel-azure-livepatch-devel
kselftests-kmp-azure
gfs2-kmp-azure-debuginfo
kernel-azure-extra-debuginfo
kernel-azure-devel-debuginfo
kernel-azure-optional-debuginfo
kernel-azure-optional
ocfs2-kmp-azure
cluster-md-kmp-azure-debuginfo
ocfs2-kmp-azure-debuginfo
dlm-kmp-azure-debuginfo
cluster-md-kmp-azure
kernel-debug-debugsource
kernel-debug-livepatch-devel
kernel-debug-debuginfo
kernel-debug-devel-debuginfo
dtb-rockchip
kernel-docs-html
kernel-source-vanilla
kselftests-kmp-default-debuginfo
kselftests-kmp-default
dtb-cavium
kernel-default-optional-debuginfo
kernel-default-optional
dtb-aarch64
dtb-allwinner
kernel-64kb-optional-debuginfo
dtb-amd
dtb-exynos
dtb-lg
dtb-hisilicon
dtb-nvidia
cluster-md-kmp-64kb
kernel-64kb-extra
kernel-64kb-optional
dtb-amazon
ocfs2-kmp-64kb
dtb-freescale
reiserfs-kmp-64kb-debuginfo
kernel-kvmsmall-devel
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-obs-qa
dtb-broadcom
dtb-amlogic
kselftests-kmp-64kb-debuginfo
dtb-qcom
dtb-arm
dtb-apm
kselftests-kmp-64kb
dtb-apple
gfs2-kmp-64kb
dtb-sprd
dtb-mediatek
kernel-64kb-extra-debuginfo
ocfs2-kmp-64kb-debuginfo
kernel-64kb-livepatch-devel
dtb-xilinx
dlm-kmp-64kb-debuginfo
dtb-marvell
dtb-socionext
dtb-renesas
gfs2-kmp-64kb-debuginfo
dlm-kmp-64kb
reiserfs-kmp-64kb
cluster-md-kmp-64kb-debuginfo
dtb-altera
kernel-default-base-rebuild
kernel-rt_debug-vdso-debuginfo
kernel-rt-optional-debuginfo
kernel-rt-vdso
kernel-rt-extra
kernel-rt-livepatch
kernel-rt-vdso-debuginfo
kselftests-kmp-rt-debuginfo
reiserfs-kmp-rt
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kernel-rt_debug-vdso
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kselftests-kmp-rt
kernel-rt_debug-livepatch-devel
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kernel-azure-vdso-debuginfo
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linux-image-generic-64k (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-87-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-87-lowlatency (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-5.15.0-87-generic-lpae (Ubuntu package)
linux-image-5.15.0-87-generic-64k (Ubuntu package)
linux-image-5.15.0-87-generic (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-5.15.0-1031-gkeop (Ubuntu package)
linux-image-5.15.0-1039-nvidia-lowlatency (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1039-nvidia (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1041-raspi (Ubuntu package)
linux-image-5.15.0-1041-ibm (Ubuntu package)
linux-image-5.15.0-1043-intel-iotg (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1045-kvm (Ubuntu package)
linux-image-5.15.0-1045-gke (Ubuntu package)
linux-image-5.15.0-1045-gcp (Ubuntu package)
linux-image-oracle-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1046-oracle (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1048-aws (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1050-azure-fde (Ubuntu package)
linux-image-5.15.0-1050-azure (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux-image-azure-fde-lts-22.04 (Ubuntu package)
linux-5.15.139/kernel-generic
linux-5.15.139/kernel-modules
linux-5.15.139/kernel-huge
linux-5.15.139/kernel-headers
kernel-livepatch-4_12_14-150100_197_148-default
kernel-livepatch-5_3_18-150200_24_154-default
kernel-livepatch-5_3_18-150200_24_154-default-debuginfo
kernel-livepatch-SLE15-SP2_Update_37-debugsource
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kernel-livepatch-5_3_18-150300_59_124-default
kernel-livepatch-SLE15-SP3_Update_33-debugsource
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kernel-livepatch
linux-image-6.2.0-35-generic (Ubuntu package)
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linux-image-6.2.0-35-generic-lpae (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
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linux-image-generic-lpae-hwe-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-6.2.0-1007-starfive (Ubuntu package)
linux-image-starfive (Ubuntu package)
linux-image-6.2.0-1011-nvidia (Ubuntu package)
linux-image-6.2.0-1011-nvidia-64k (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-nvidia-6.2 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-64k-6.2 (Ubuntu package)
linux-image-6.2.0-1014-oracle (Ubuntu package)
linux-image-6.2.0-1014-aws (Ubuntu package)
linux-image-6.2.0-1015-kvm (Ubuntu package)
linux-image-6.2.0-1015-lowlatency (Ubuntu package)
linux-image-6.2.0-1015-azure (Ubuntu package)
linux-image-6.2.0-1015-lowlatency-64k (Ubuntu package)
linux-image-6.2.0-1015-azure-fde (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-6.2.0-1015-raspi (Ubuntu package)
linux-image-6.2.0-1017-gcp (Ubuntu package)
kgraft-patch-4_12_14-122_159-default
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kernel-livepatch-5_3_18-150200_24_129-default
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kernel-livepatch-5_3_18-150300_59_98-default
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kernel-livepatch-5_14_21-150400_24_28-default-debuginfo
SmartFabric OS10
ObjectScale
Storage Defender – Data Protect
Storage Copy Data Management
EMC ECS
XtremIO X2
Storage Protect Plus Server
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)
RecoverPoint for VMs
Dell EMC VxRail Appliance
IBM Security Guardium

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the the Linux kernel net/sched: sch_hfsc (HFSC qdisc traffic control) component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


How to mitigate CVE-2023-4623

Install update from vendor's website.

Sources