Out-of-bounds read in Linux kernel - CVE-2023-53397

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU115908

Out-of-bounds read in Linux kernel - CVE-2023-53397

Published: September 19, 2025 / Updated: September 22, 2025


Vulnerability identifier: #VU115908
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2023-53397
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to an out-of-bounds read error within the default_mismatch_handler() function in scripts/mod/modpost.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Live Patching
Development Tools Module
SUSE Real Time Module
Public Cloud Module
Legacy Module
Basesystem Module
openSUSE Leap
kgraft-patch-4_12_14-122_275-default
kernel-livepatch-6_4_0-150600_10_55-rt
kernel-livepatch-6_4_0-150600_10_55-rt-debuginfo
kernel-livepatch-SLE15-SP6-RT_Update_16-debugsource
kernel-livepatch-6_4_0-150600_23_73-default
kernel-livepatch-SLE15-SP6_Update_16-debugsource
kernel-livepatch-6_4_0-150600_23_73-default-debuginfo
kernel-livepatch-SLE15-SP7-RT_Update_6-debugsource
kernel-livepatch-6_4_0-150700_7_22-rt-debuginfo
kernel-livepatch-6_4_0-150700_7_22-rt
kernel-livepatch-6_4_0-150700_53_22-default
kernel-livepatch-6_4_0-150700_53_22-default-debuginfo
kernel-livepatch-SLE15-SP7_Update_6-debugsource
cluster-md-kmp-default-debuginfo
kernel-source
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-default-devel-debuginfo
kernel-default-man
kernel-default
dlm-kmp-default-debuginfo
kernel-default-base-debuginfo
kernel-default-debugsource
kernel-default-devel
ocfs2-kmp-default
kernel-default-base
kernel-macros
kernel-devel
kernel-syms
gfs2-kmp-default
kernel-default-debuginfo
ocfs2-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
kernel-azure-devel
kernel-devel-azure
kernel-azure-vdso
kernel-azure-vdso-debuginfo
kernel-azure
reiserfs-kmp-azure
kernel-azure-devel-debuginfo
gfs2-kmp-azure
kernel-syms-azure
kselftests-kmp-azure-debuginfo
ocfs2-kmp-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-debuginfo
gfs2-kmp-azure-debuginfo
cluster-md-kmp-azure
dlm-kmp-azure
cluster-md-kmp-azure-debuginfo
kernel-azure-extra
dlm-kmp-azure-debuginfo
kernel-azure-optional
kernel-azure-debugsource
kernel-azure-optional-debuginfo
kselftests-kmp-azure
kernel-azure-extra-debuginfo
kernel-source-azure
ocfs2-kmp-azure-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-optional-debuginfo
kernel-rt_debug
kernel-rt
kernel-source-rt
kernel-devel-rt
kernel-rt_debug-devel-debuginfo
kernel-rt-devel-debuginfo
kernel-rt_debug-debugsource
kernel-rt-devel
kselftests-kmp-rt
dlm-kmp-rt
cluster-md-kmp-rt
ocfs2-kmp-rt
kernel-rt-debugsource
ocfs2-kmp-rt-debuginfo
kernel-syms-rt
cluster-md-kmp-rt-debuginfo
gfs2-kmp-rt
reiserfs-kmp-rt
kernel-rt_debug-devel
dlm-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
kernel-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-optional
reiserfs-kmp-rt-debuginfo
kernel-rt-livepatch-devel
kernel-rt-extra-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt_debug-vdso
kselftests-kmp-rt-debuginfo
kernel-rt-vdso
kernel-rt-extra
kernel-source-vanilla
kernel-docs-html
kernel-default-livepatch-devel
kernel-default-livepatch
kernel-default-extra
kernel-default-extra-debuginfo
kernel-debug-vdso
kernel-debug
kernel-debug-debuginfo
kernel-debug-devel
kernel-debug-devel-debuginfo
kernel-debug-debugsource
kernel-kvmsmall-vdso
kernel-obs-build-debugsource
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-obs-build
kernel-64kb-devel-debuginfo
gfs2-kmp-64kb
dtb-apple
dtb-xilinx
dtb-cavium
dtb-sprd
dlm-kmp-64kb-debuginfo
cluster-md-kmp-64kb
kernel-64kb-devel
dtb-lg
reiserfs-kmp-64kb-debuginfo
dtb-renesas
dlm-kmp-64kb
dtb-amazon
dtb-hisilicon
dtb-qcom
dtb-rockchip
dtb-broadcom
kernel-docs
dtb-nvidia
kernel-64kb-optional
dtb-altera
dtb-amd
reiserfs-kmp-64kb
dtb-socionext
ocfs2-kmp-64kb-debuginfo
dtb-allwinner
kernel-64kb-debugsource
cluster-md-kmp-64kb-debuginfo
dtb-mediatek
kernel-64kb-extra-debuginfo
dtb-freescale
kernel-64kb-optional-debuginfo
kernel-64kb-debuginfo
dtb-exynos
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-default-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-devel
kernel-default-optional
kselftests-kmp-default-debuginfo
kernel-default-optional-debuginfo
kselftests-kmp-default
kernel-obs-qa
kernel-zfcpdump
gfs2-kmp-64kb-debuginfo
ocfs2-kmp-64kb
dtb-apm
dtb-marvell
kernel-64kb-extra
kselftests-kmp-64kb
kernel-64kb
kselftests-kmp-64kb-debuginfo
kernel-kvmsmall
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
dtb-aarch64
dtb-amlogic
dtb-arm
kernel-default-base-rebuild

How to mitigate CVE-2023-53397

Install update from vendor's repository.

Linux kernel - update to 6.1.39
kgraft-patch-4_12_14-122_275-default - update to 1-8.3.1
kernel-livepatch-6_4_0-150600_10_55-rt - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_10_55-rt-debuginfo - update to 1-150600.1.3.1
kernel-livepatch-SLE15-SP6-RT_Update_16-debugsource - update to 1-150600.1.3.1
kernel-livepatch-6_4_0-150600_23_73-default - update to 1-150600.13.3.1
kernel-livepatch-SLE15-SP6_Update_16-debugsource - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_73-default-debuginfo - update to 1-150600.13.3.1
kernel-livepatch-SLE15-SP7-RT_Update_6-debugsource - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_22-rt-debuginfo - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_7_22-rt - update to 1-150700.1.3.1
kernel-livepatch-6_4_0-150700_53_22-default - update to 1-150700.15.3.1
kernel-livepatch-6_4_0-150700_53_22-default-debuginfo - update to 1-150700.15.3.1
kernel-livepatch-SLE15-SP7_Update_6-debugsource - update to 1-150700.15.3.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-source - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-kgraft - update to 4.12.14-122.275.1
kernel-default-kgraft-devel - update to 4.12.14-122.275.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-man - update to 4.12.14-122.275.1
kernel-default - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-base-debuginfo - update to 4.12.14-122.275.1
kernel-default-debugsource - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-devel - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-base - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1.150600.12.32.1, 6.4.0-150700.53.22.1.150700.17.15.1
kernel-macros - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-devel - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-syms - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
gfs2-kmp-default - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dlm-kmp-default - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.275.1, 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-azure-devel - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kernel-devel-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kernel-azure-vdso - update to 6.4.0-150600.8.52.1
kernel-azure-vdso-debuginfo - update to 6.4.0-150600.8.52.1
kernel-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
reiserfs-kmp-azure - update to 6.4.0-150600.8.52.1
kernel-azure-devel-debuginfo - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
gfs2-kmp-azure - update to 6.4.0-150600.8.52.1
kernel-syms-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kselftests-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
ocfs2-kmp-azure - update to 6.4.0-150600.8.52.1
reiserfs-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
kernel-azure-debuginfo - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
gfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
cluster-md-kmp-azure - update to 6.4.0-150600.8.52.1
dlm-kmp-azure - update to 6.4.0-150600.8.52.1
cluster-md-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
kernel-azure-extra - update to 6.4.0-150600.8.52.1
dlm-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
kernel-azure-optional - update to 6.4.0-150600.8.52.1
kernel-azure-debugsource - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
kernel-azure-optional-debuginfo - update to 6.4.0-150600.8.52.1
kselftests-kmp-azure - update to 6.4.0-150600.8.52.1
kernel-azure-extra-debuginfo - update to 6.4.0-150600.8.52.1
kernel-source-azure - addressed in versions 6.4.0-150600.8.52.1, 6.4.0-150700.20.18.1
ocfs2-kmp-azure-debuginfo - update to 6.4.0-150600.8.52.1
gfs2-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt_debug - update to 6.4.0-150600.10.55.1
kernel-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-source-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-devel-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-devel-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.55.1
kernel-rt-devel - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kselftests-kmp-rt - update to 6.4.0-150600.10.55.1
dlm-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
cluster-md-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
ocfs2-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt-debugsource - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
ocfs2-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-syms-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
cluster-md-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
gfs2-kmp-rt - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
reiserfs-kmp-rt - update to 6.4.0-150600.10.55.1
kernel-rt_debug-devel - update to 6.4.0-150600.10.55.1
dlm-kmp-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-debuginfo - addressed in versions 6.4.0-150600.10.55.1, 6.4.0-150700.7.22.1
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-optional - update to 6.4.0-150600.10.55.1
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.55.1
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt_debug-vdso - update to 6.4.0-150600.10.55.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.55.1
kernel-rt-vdso - update to 6.4.0-150600.10.55.1
kernel-rt-extra - update to 6.4.0-150600.10.55.1
kernel-source-vanilla - update to 6.4.0-150600.23.73.1
kernel-docs-html - update to 6.4.0-150600.23.73.1
kernel-default-livepatch-devel - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-livepatch - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-extra - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-default-extra-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-debug-vdso - update to 6.4.0-150600.23.73.1
kernel-debug - update to 6.4.0-150600.23.73.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.73.1
kernel-debug-devel - update to 6.4.0-150600.23.73.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.73.1
kernel-debug-debugsource - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.73.1
kernel-obs-build-debugsource - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
reiserfs-kmp-default-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
reiserfs-kmp-default - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-obs-build - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-64kb-devel-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.73.1
dtb-apple - update to 6.4.0-150600.23.73.1
dtb-xilinx - update to 6.4.0-150600.23.73.1
dtb-cavium - update to 6.4.0-150600.23.73.1
dtb-sprd - update to 6.4.0-150600.23.73.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.73.1
kernel-64kb-devel - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dtb-lg - update to 6.4.0-150600.23.73.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
dtb-renesas - update to 6.4.0-150600.23.73.1
dlm-kmp-64kb - update to 6.4.0-150600.23.73.1
dtb-amazon - update to 6.4.0-150600.23.73.1
dtb-hisilicon - update to 6.4.0-150600.23.73.1
dtb-qcom - update to 6.4.0-150600.23.73.1
dtb-rockchip - update to 6.4.0-150600.23.73.1
dtb-broadcom - update to 6.4.0-150600.23.73.1
kernel-docs - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dtb-nvidia - update to 6.4.0-150600.23.73.1
kernel-64kb-optional - update to 6.4.0-150600.23.73.1
dtb-altera - update to 6.4.0-150600.23.73.1
dtb-amd - update to 6.4.0-150600.23.73.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.73.1
dtb-socionext - update to 6.4.0-150600.23.73.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
dtb-allwinner - update to 6.4.0-150600.23.73.1
kernel-64kb-debugsource - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
dtb-mediatek - update to 6.4.0-150600.23.73.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.73.1
dtb-freescale - update to 6.4.0-150600.23.73.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.73.1
kernel-64kb-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dtb-exynos - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.73.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.73.1
kernel-default-vdso - update to 6.4.0-150600.23.73.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.73.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.73.1
kernel-default-optional - update to 6.4.0-150600.23.73.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.73.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.73.1
kselftests-kmp-default - update to 6.4.0-150600.23.73.1
kernel-obs-qa - update to 6.4.0-150600.23.73.1
kernel-zfcpdump - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.73.1
dtb-apm - update to 6.4.0-150600.23.73.1
dtb-marvell - update to 6.4.0-150600.23.73.1
kernel-64kb-extra - update to 6.4.0-150600.23.73.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.73.1
kernel-64kb - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.73.1
kernel-kvmsmall - update to 6.4.0-150600.23.73.1
kernel-zfcpdump-debugsource - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
kernel-zfcpdump-debuginfo - addressed in versions 6.4.0-150600.23.73.1, 6.4.0-150700.53.22.1
dtb-aarch64 - update to 6.4.0-150600.23.73.1
dtb-amlogic - update to 6.4.0-150600.23.73.1
dtb-arm - update to 6.4.0-150600.23.73.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.73.1.150600.12.32.1

External References

Related Security Bulletins