Out-of-bounds write in Linux kernel - CVE-2023-45863

Vulnerability identifier: #VU84354

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-2023-45863

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
Debian Linux
Amazon Linux AMI
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 15
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 ESPOS 15
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Real Time 12
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Manager Server
SUSE CaaS Platform
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Anolis OS
SUSE Enterprise Storage
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 for Power, little endian
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Live Patching
Ubuntu
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 High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 Business Critical Linux
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 LTSS
Basesystem Module
SUSE Real Time Module
Public Cloud Module
Legacy Module
Development Tools Module
openSUSE Leap
openEuler
Oracle VM Server for x86
IBM Cloud Object Storage Systems
RecoverPoint for Virtual Machines
IBM Qradar SIEM
Juniper Secure Analytics (JSA)
SmartFabric OS10
ObjectScale
Storage Copy Data Management
PowerProtect DP Series Appliance (IDPA)
Technical Support Appliance
PowerStore T
Dell EMC PowerStore Family Operating System
IBM Cloud Pak for Watson AIOps
Storage Resource Manager
Storage Protect Plus Server
IBM Security Guardium
linux-image-5.4.0-171-lowlatency (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-4.15.0-221-lowlatency (Ubuntu package)
linux-image-4.15.0-221-generic (Ubuntu package)
linux-image-4.15.0-1164-aws (Ubuntu package)
linux-image-4.15.0-1158-gcp (Ubuntu package)
linux-image-4.15.0-1148-kvm (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-4.4.0-1164-aws (Ubuntu package)
linux-image-5.4.0-1118-aws (Ubuntu package)
linux-image-5.4.0-1123-azure (Ubuntu package)
linux-image-5.4.0-171-generic (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-5.4.0-1122-gcp (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-5.4.0-1102-raspi (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
linux-image-4.4.0-1128-kvm (Ubuntu package)
linux-image-4.4.0-250-generic (Ubuntu package)
linux-image-4.4.0-250-lowlatency (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-4.4.0-1127-aws (Ubuntu package)
linux-image-4.15.0-1173-azure (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-4.15.0-1127-oracle (Ubuntu package)
linux-image-5.4.0-1117-oracle (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-5.4.0-1065-ibm (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
kgraft-patch-4_12_14-122_186-default
kernel-livepatch-4_12_14-150100_197_165-default
kernel-livepatch-SLE15-SP2_Update_43-debugsource
kernel-livepatch-5_3_18-150200_24_172-default
kernel-livepatch-5_3_18-150200_24_172-default-debuginfo
kernel-livepatch-5_3_18-150300_59_144-default
kernel-livepatch-5_3_18-150300_59_144-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_144-preempt
kernel-livepatch-SLE15-SP3_Update_39-debugsource
kernel-livepatch-5_3_18-150300_59_144-default-debuginfo
kernel-livepatch-5_14_21-150400_15_62-rt
kernel-livepatch-SLE15-SP4-RT_Update_16-debugsource
kernel-livepatch-5_14_21-150400_15_62-rt-debuginfo
kernel-livepatch-5_14_21-150400_24_100-default
kernel-livepatch-5_14_21-150400_24_100-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_21-debugsource
kernel-livepatch-5_14_21-150500_55_39-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_8-debugsource
kernel-livepatch-5_14_21-150500_55_39-default
kernel-livepatch-SLE15-SP5-RT_Update_8-debugsource
kernel-livepatch-5_14_21-150500_13_27-rt
kernel-livepatch-5_14_21-150500_13_27-rt-debuginfo
kernel-default-base
kernel-trace-base
kernel-ec2
kernel-syms
kernel-trace-devel
kernel-xen-devel
kernel-ec2-base
kernel-default-devel
kernel-ec2-devel
kernel-source
kernel-xen-base
kernel-default
kernel-trace
kernel-xen
kernel-rt-devel-debuginfo
kernel-rt-devel
kernel-rt_debug-debugsource
gfs2-kmp-rt
kernel-rt_debug-devel
kernel-rt_debug-debuginfo
kernel-rt-base
ocfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
kernel-syms-rt
kernel-rt_debug-devel-debuginfo
dlm-kmp-rt
kernel-rt-debuginfo
kernel-devel-rt
cluster-md-kmp-rt-debuginfo
kernel-source-rt
kernel-rt
kernel-rt-base-debuginfo
kernel-rt_debug
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-debugsource
dlm-kmp-rt-debuginfo
kernel-azure-devel
kernel-azure-debugsource
kernel-azure
kernel-azure-base
kernel-azure-base-debuginfo
kernel-devel-azure
kernel-azure-debuginfo
kernel-source-azure
kernel-syms-azure
cluster-md-kmp-default
kernel-macros
kernel-devel
kernel-default-devel-debuginfo
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-docs
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-man
kernel-default-extra-debuginfo
kernel-default-extra
gfs2-kmp-default
ocfs2-kmp-default-debuginfo
ocfs2-kmp-default
kernel-default-base-debuginfo
cluster-md-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-default-debuginfo
dlm-kmp-default
kernel-default-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-zfcpdump-man
reiserfs-kmp-default
kernel-kvmsmall-base
kernel-kvmsmall-base-debuginfo
kernel-debug-base-debuginfo
kernel-debug-base
kernel-zfcpdump
kernel-debug
kernel-kvmsmall
reiserfs-kmp-default-debuginfo
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-modules
kernel-core
kernel-cross-headers
kernel-debug-core
kernel-debug-devel
kernel-debug-modules
kernel-debug-modules-extra
kernel-headers
kernel-modules-extra
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
kernel-abi-stablelists
kernel-doc
bpftool
kernel
python3-perf-debuginfo
python2-perf
kernel-tools-devel
python2-perf-debuginfo
perf-debuginfo
kernel-debugsource
kernel-tools-debuginfo
kernel-debuginfo
bpftool-debuginfo
kernel-modules-internal
python-perf
kernel-preempt-devel-debuginfo
kernel-preempt-devel
kernel-preempt-debugsource
kernel-preempt-debuginfo
kernel-preempt
dtb-arm
reiserfs-kmp-64kb
dtb-hisilicon
kselftests-kmp-64kb
dtb-allwinner
dtb-nvidia
dtb-qcom
kernel-64kb-devel-debuginfo
dtb-broadcom
dtb-marvell
kernel-64kb-devel
ocfs2-kmp-64kb-debuginfo
dtb-socionext
dtb-al
dtb-lg
kselftests-kmp-64kb-debuginfo
dtb-exynos
dtb-freescale
kernel-64kb-optional-debuginfo
reiserfs-kmp-64kb-debuginfo
dtb-altera
kernel-64kb-extra-debuginfo
dtb-sprd
kernel-64kb
dtb-xilinx
cluster-md-kmp-64kb-debuginfo
dtb-cavium
gfs2-kmp-64kb
dtb-rockchip
dtb-renesas
dtb-amlogic
dtb-amd
ocfs2-kmp-64kb
dtb-mediatek
dlm-kmp-64kb
kernel-64kb-debugsource
dlm-kmp-64kb-debuginfo
kernel-64kb-optional
kernel-64kb-livepatch-devel
gfs2-kmp-64kb-debuginfo
kernel-64kb-extra
dtb-apm
cluster-md-kmp-64kb
kernel-obs-qa
kselftests-kmp-default
kselftests-kmp-default-debuginfo
kernel-default-optional
kernel-default-optional-debuginfo
kernel-debug-debuginfo
kernel-source-vanilla
kernel-kvmsmall-devel-debuginfo
kernel-debug-livepatch-devel
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
dtb-zte
kernel-kvmsmall-debuginfo
kernel-kvmsmall-livepatch-devel
kernel-debug-debugsource
kernel-debug-devel-debuginfo
cluster-md-kmp-preempt-debuginfo
kernel-preempt-livepatch-devel
ocfs2-kmp-preempt
kselftests-kmp-preempt
kernel-preempt-extra-debuginfo
kselftests-kmp-preempt-debuginfo
kernel-preempt-optional-debuginfo
gfs2-kmp-preempt
dlm-kmp-preempt
reiserfs-kmp-preempt-debuginfo
dtb-aarch64
kernel-64kb-debuginfo
ocfs2-kmp-preempt-debuginfo
cluster-md-kmp-preempt
kernel-preempt-extra
dlm-kmp-preempt-debuginfo
reiserfs-kmp-preempt
kernel-preempt-optional
gfs2-kmp-preempt-debuginfo
kernel-docs-html
kernel-default-base-rebuild
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-171-generic-lpae (Ubuntu package)
linux-image-5.4.0-1030-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1037-xilinx-zynqmp (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1078-bluefield (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-gkeop-5.4 (Ubuntu package)
linux-image-5.4.0-1085-gkeop (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-5.4.0-1106-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)
linux (Debian package)
kernel-azure-extra-debuginfo
cluster-md-kmp-azure-debuginfo
kernel-azure-livepatch-devel
dlm-kmp-azure
kselftests-kmp-azure
kernel-azure-extra
ocfs2-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
gfs2-kmp-azure-debuginfo
cluster-md-kmp-azure
kernel-azure-optional-debuginfo
dlm-kmp-azure-debuginfo
gfs2-kmp-azure
kernel-azure-optional
reiserfs-kmp-azure-debuginfo
ocfs2-kmp-azure
kselftests-kmp-azure-debuginfo
reiserfs-kmp-azure
dtb-amazon
dtb-apple
kernel-rt_debug-livepatch-devel
kselftests-kmp-rt
kernel-rt-livepatch
kselftests-kmp-rt-debuginfo
kernel-rt_debug-vdso-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt-optional-debuginfo
kernel-rt-livepatch-devel
kernel-rt-vdso-debuginfo
kernel-rt-extra-debuginfo
kernel-rt-extra
kernel-rt-vdso
reiserfs-kmp-rt
kernel-rt-optional
kernel-rt_debug-vdso
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-default-vdso
kernel-debug-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso-debuginfo
Dell EMC Storage Monitoring and Reporting (SMR)
IBM Storage Scale System

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

The vulnerability exists due to a boundary error within the fill_kobj_path() function in lib/kobject.c. A local user can can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Install updates from vendor's website.

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3bb2a01caa813d3a1845d378bbe4169ef280d394
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3