Type Confusion in Linux kernel - CVE-2023-1077

Vulnerability identifier: #VU72699

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-2023-1077

CWE-ID: CWE-843

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 for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
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 Workstation Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Real Time 12
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Manager Proxy
SUSE CaaS Platform
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Anolis OS
SUSE Enterprise Storage
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE
SUSE Linux Enterprise Server 12 SP2 BCL
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Live Patching
Slackware Linux
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 Business Critical Linux
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Real Time Module
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 LTSS
Public Cloud Module
Basesystem Module
Development Tools Module
Legacy Module
openSUSE Leap
Ubuntu
Dell EMC PowerProtect Data Protection
Dell Data Protection Central
SmartFabric OS10
ObjectScale
EMC Cloud Tiering Appliance
Oracle VM Server for x86
IBM Spectrum Protect Plus
RecoverPoint for Virtual Machines
kgraft-patch-4_12_14-122_165-default
kernel-livepatch-4_12_14-150100_197_148-default
kernel-livepatch-5_3_18-150200_24_157-default
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kernel-devel
kernel-macros
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kernel-devel-rt
kernel-rt-debugsource
ocfs2-kmp-rt
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kernel-rt
kernel-rt_debug
kernel-rt-base-debuginfo
gfs2-kmp-rt-debuginfo
gfs2-kmp-rt
kernel-rt_debug-devel-debuginfo
cluster-md-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt-devel
kernel-syms-rt
kernel-rt-base
cluster-md-kmp-rt
kernel-rt_debug-debugsource
kernel-rt_debug-devel
kernel-rt-debuginfo
kernel-azure-debugsource
kernel-azure
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kernel-azure-base-debuginfo
kernel-azure-devel
kernel-syms-azure
kernel-azure-base
kernel-source-azure
kernel-devel-azure
gfs2-kmp-default
gfs2-kmp-default-debuginfo
kernel-docs
kernel-obs-build-debugsource
ocfs2-kmp-default
kernel-default-kgraft-devel
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kernel-obs-build
kernel-default-man
kernel-default-extra-debuginfo
kernel-default-devel-debuginfo
dlm-kmp-default
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cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
reiserfs-kmp-default-debuginfo
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kernel-zfcpdump-debugsource
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kernel-default-livepatch
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kernel-zfcpdump-man
kernel
kernel-debug-devel
kernel-headers
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python-perf
kernel-modules-internal
kernel-debug-core
kernel-modules-extra
kernel-modules
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kernel-debug-modules
python3-perf
bpftool
kernel-core
kgraft-patch-4_12_14-122_153-default
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kernel-64kb-devel-debuginfo
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kernel-64kb
dtb-zte
dtb-al
dtb-aarch64
linux-image-lowlatency (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-152-lowlatency (Ubuntu package)
linux-image-5.4.0-152-generic-lpae (Ubuntu package)
linux-image-5.4.0-152-generic (Ubuntu package)
linux-image-5.4.0-1017-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1024-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1051-ibm (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1065-bluefield (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-gkeop-5.4 (Ubuntu package)
linux-image-5.4.0-1071-gkeop (Ubuntu package)
linux-image-5.4.0-1088-raspi (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-5.4.0-1093-kvm (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-gke-5.4 (Ubuntu package)
linux-image-5.4.0-1102-gke (Ubuntu package)
linux-image-oracle-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1103-oracle (Ubuntu package)
linux-image-aws-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1104-aws (Ubuntu package)
linux-image-gcp-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1107-gcp (Ubuntu package)
linux-image-azure-lts-20.04 (Ubuntu package)
linux-image-5.4.0-1110-azure (Ubuntu package)
reiserfs-kmp-azure
reiserfs-kmp-azure-debuginfo
cluster-md-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
kernel-azure-optional
gfs2-kmp-azure-debuginfo
ocfs2-kmp-azure-debuginfo
kernel-azure-extra
gfs2-kmp-azure
kselftests-kmp-azure
dlm-kmp-azure
dlm-kmp-azure-debuginfo
kernel-azure-optional-debuginfo
kernel-azure-devel-debuginfo
ocfs2-kmp-azure
cluster-md-kmp-azure
kernel-azure-extra-debuginfo
kernel-azure-livepatch-devel
dtb-allwinner
kselftests-kmp-64kb
kselftests-kmp-64kb-debuginfo
reiserfs-kmp-64kb-debuginfo
cluster-md-kmp-64kb
dtb-apm
dtb-xilinx
dtb-sprd
dtb-altera
ocfs2-kmp-64kb-debuginfo
dtb-marvell
dtb-amd
cluster-md-kmp-64kb-debuginfo
dtb-exynos
gfs2-kmp-64kb-debuginfo
kernel-64kb-optional
dtb-hisilicon
dtb-lg
dtb-cavium
dtb-amlogic
dtb-apple
kernel-docs-html
kernel-source-vanilla
ocfs2-kmp-64kb
dtb-qcom
reiserfs-kmp-64kb
dlm-kmp-64kb
dtb-mediatek
dtb-amazon
gfs2-kmp-64kb
dtb-arm
dtb-socionext
dtb-broadcom
dtb-freescale
dtb-rockchip
kernel-64kb-extra-debuginfo
kernel-64kb-livepatch-devel
kernel-64kb-extra
kernel-64kb-optional-debuginfo
dtb-nvidia
dtb-renesas
dlm-kmp-64kb-debuginfo
kernel-kvmsmall-devel
kselftests-kmp-default-debuginfo
kselftests-kmp-default
kernel-obs-qa
kernel-default-optional
kernel-default-optional-debuginfo
kernel-debug-livepatch-devel
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debuginfo
kernel-default-base-rebuild
kselftests-kmp-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
kselftests-kmp-rt
kernel-rt_debug-livepatch-devel
reiserfs-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-extra-debuginfo
kernel-rt_debug-vdso
kernel-rt-extra
kernel-rt-livepatch-devel
kernel-rt-vdso
kernel-rt-livepatch
kernel-rt-optional
reiserfs-kmp-rt
kernel-rt-optional-debuginfo
kernel-azure-vdso
kernel-azure-vdso-debuginfo
kernel-debug-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso
linux-image-generic-64k (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-75-generic (Ubuntu package)
linux-image-5.15.0-75-lowlatency (Ubuntu package)
linux-image-5.15.0-75-generic-64k (Ubuntu package)
linux-image-5.15.0-75-generic-lpae (Ubuntu package)
linux-image-5.15.0-75-lowlatency-64k (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-5.15.0-1022-gkeop (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1032-ibm (Ubuntu package)
linux-image-5.15.0-1032-raspi (Ubuntu package)
linux-image-5.15.0-1032-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1033-intel-iotg (Ubuntu package)
linux-image-5.15.0-1035-kvm (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1036-gke (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-5.15.0-1036-gcp (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-5.15.0-1037-oracle (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1038-aws (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-5.15.0-1040-azure (Ubuntu package)
linux-image-5.15.0-1040-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux-image-5.15.0-1041-azure-fde (Ubuntu package)
linux-image-azure-fde-lts-22.04 (Ubuntu package)
linux-5.15.118/kernel-modules
linux-5.15.118/kernel-huge
linux-5.15.118/kernel-generic
linux-5.15.118/kernel-headers
linux-image-5.19.0-45-generic-64k (Ubuntu package)
linux-image-5.19.0-45-generic (Ubuntu package)
linux-image-5.19.0-45-generic-lpae (Ubuntu package)
linux-image-generic-lpae-hwe-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-5.19.0-1021-raspi (Ubuntu package)
linux-image-5.19.0-1021-raspi-nolpae (Ubuntu package)
linux-image-5.19.0-1024-ibm (Ubuntu package)
linux-image-5.19.0-1025-kvm (Ubuntu package)
linux-image-5.19.0-1025-oracle (Ubuntu package)
linux-image-5.19.0-1026-gcp (Ubuntu package)
linux-image-5.19.0-1027-lowlatency (Ubuntu package)
linux-image-5.19.0-1027-aws (Ubuntu package)
linux-image-5.19.0-1027-lowlatency-64k (Ubuntu package)
linux-image-5.19.0-1028-azure (Ubuntu package)
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kernel-livepatch-5_3_18-150200_24_148-default
kernel-livepatch-5_3_18-150300_59_121-default
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kernel-livepatch-SLE15-SP4-RT_Update_6-debugsource
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kernel-livepatch
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kernel-livepatch-SLE15-SP2_Update_33-debugsource
kernel-livepatch-5_3_18-150200_24_142-default-debuginfo
kernel-livepatch-5_3_18-150200_24_142-default
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kernel-livepatch-5_14_21-150400_15_8-rt-debuginfo
kernel-livepatch-5_14_21-150400_24_41-default-debuginfo
kernel-livepatch-SLE15-SP4-RT_Update_2-debugsource
kernel-livepatch-5_14_21-150400_15_8-rt
kgraft-patch-4_12_14-122_139-default
kernel-livepatch-5_14_21-150400_24_38-default
kernel-livepatch-5_14_21-150400_24_38-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_6-debugsource
kernel-livepatch-SLE15-SP4-RT_Update_1-debugsource
kernel-livepatch-5_14_21-150400_15_5-rt-debuginfo
kernel-livepatch-5_14_21-150400_15_5-rt
kgraft-patch-4_12_14-122_136-default
kernel-livepatch-4_12_14-150100_197_126-default
kernel-livepatch-4_12_14-150100_197_123-default
kernel-livepatch-5_3_18-150300_59_101-default
kernel-livepatch-5_14_21-150400_24_33-default-debuginfo
kernel-livepatch-5_14_21-150400_24_33-default
kernel-livepatch-SLE15-SP4_Update_5-debugsource
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kernel-livepatch-5_3_18-150200_24_129-default
kernel-livepatch-SLE15-SP2_Update_30-debugsource
kernel-livepatch-5_3_18-150200_24_134-default-debuginfo
kernel-livepatch-5_3_18-150200_24_129-default-debuginfo
kernel-livepatch-5_3_18-150200_24_134-default
kernel-livepatch-5_3_18-150300_59_98-default
kernel-livepatch-5_14_21-150400_24_28-default
kernel-livepatch-5_14_21-150400_24_28-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_4-debugsource
kgraft-patch-4_12_14-122_130-default
kernel-livepatch-4_12_14-150100_197_120-default
kernel-livepatch-5_3_18-150300_59_93-default
kernel-livepatch-5_14_21-150400_24_21-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_3-debugsource
kernel-livepatch-5_14_21-150400_24_21-default
kernel-livepatch-SLE15-SP2_Update_29-debugsource
kernel-livepatch-5_3_18-150200_24_126-default
kernel-livepatch-5_3_18-150200_24_126-default-debuginfo
kernel-livepatch-5_3_18-150300_59_90-default
kernel-livepatch-SLE15-SP4_Update_2-debugsource
kernel-livepatch-5_14_21-150400_24_18-default
kernel-livepatch-5_14_21-150400_24_18-default-debuginfo
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)
IBM Storage Scale System
Dell EMC VxRail Appliance

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

The vulnerability exists due to a type confusion error within the pick_next_rt_entity() function pick_next_rt_entity(). A local user can trigger a type confusion error and execute arbitrary code with elevated privileges.

Install updates from vendor's website.

• https://seclists.org/oss-sec/2023/q1/126