NULL pointer dereference in Linux kernel - CVE-2023-52472

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Main Vulnerability Database Vulnerabilities #VU91244

NULL pointer dereference in Linux kernel - CVE-2023-52472

Published: June 5, 2024 / Updated: May 13, 2025


Vulnerability identifier: #VU91244
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-2023-52472
CWE-ID: CWE-476
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 NULL pointer dereference within the rsa_check_exponent_fips() function in crypto/rsa.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
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 Workstation Extension 15
SUSE Linux Enterprise Live Patching
Public Cloud Module
SUSE Real Time Module
Legacy Module
Development Tools Module
Basesystem Module
openSUSE Leap
Ubuntu
kernel-livepatch-6_4_0-150600_10_5-rt-debuginfo
kernel-livepatch-6_4_0-150600_10_5-rt
kernel-livepatch-SLE15-SP6-RT_Update_1-debugsource
kernel-livepatch-SLE15-SP6_Update_3-debugsource
kernel-livepatch-6_4_0-150600_23_17-default-debuginfo
kernel-livepatch-6_4_0-150600_23_17-default
kernel-syms-azure
kernel-azure-devel
kernel-azure-extra
kselftests-kmp-azure
kernel-azure-optional-debuginfo
kernel-azure
kernel-azure-vdso-debuginfo
kernel-azure-vdso
kernel-devel-azure
kernel-source-azure
reiserfs-kmp-azure-debuginfo
reiserfs-kmp-azure
kernel-azure-debuginfo
kernel-azure-extra-debuginfo
dlm-kmp-azure-debuginfo
dlm-kmp-azure
kernel-azure-optional
ocfs2-kmp-azure-debuginfo
gfs2-kmp-azure
kernel-azure-debugsource
ocfs2-kmp-azure
kernel-azure-livepatch-devel
cluster-md-kmp-azure
gfs2-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
cluster-md-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
dlm-kmp-rt-debuginfo
ocfs2-kmp-rt
kselftests-kmp-rt
kernel-rt_debug-debuginfo
kernel-rt_debug-vdso-debuginfo
kernel-rt-livepatch-devel
kernel-rt-optional-debuginfo
dlm-kmp-rt
kernel-rt-extra
reiserfs-kmp-rt
kernel-rt-debugsource
kernel-syms-rt
kernel-rt-optional
ocfs2-kmp-rt-debuginfo
kernel-devel-rt
kernel-source-rt
kernel-rt_debug
kernel-rt
kernel-rt-vdso-debuginfo
cluster-md-kmp-rt
kernel-rt_debug-livepatch-devel
kernel-rt-debuginfo
gfs2-kmp-rt
kernel-rt-extra-debuginfo
kernel-rt_debug-devel
reiserfs-kmp-rt-debuginfo
kernel-rt_debug-debugsource
cluster-md-kmp-rt-debuginfo
kselftests-kmp-rt-debuginfo
kernel-rt_debug-vdso
kernel-rt-vdso
kernel-rt_debug-devel-debuginfo
kernel-rt-devel-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
cluster-md-kmp-64kb
kernel-64kb-optional-debuginfo
kernel-64kb-optional
dtb-renesas
kernel-64kb-debuginfo
dlm-kmp-64kb-debuginfo
reiserfs-kmp-64kb
dtb-altera
kernel-64kb-devel-debuginfo
kernel-64kb-debugsource
dtb-allwinner
dtb-freescale
kernel-64kb-extra
dtb-qcom
dtb-amd
dtb-socionext
dtb-sprd
ocfs2-kmp-64kb-debuginfo
kselftests-kmp-64kb
dtb-broadcom
dtb-amlogic
dtb-hisilicon
dtb-apm
gfs2-kmp-64kb
dtb-lg
kernel-64kb
dlm-kmp-64kb
cluster-md-kmp-default-debuginfo
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-default-debugsource
ocfs2-kmp-default
kernel-default-devel-debuginfo
kernel-default-optional
reiserfs-kmp-default-debuginfo
kernel-kvmsmall-livepatch-devel
kernel-default-devel
gfs2-kmp-default-debuginfo
kselftests-kmp-default
dlm-kmp-default-debuginfo
kernel-default-extra-debuginfo
kernel-obs-build
kernel-obs-build-debugsource
kselftests-kmp-default-debuginfo
kernel-debug-devel-debuginfo
kernel-source-vanilla
kernel-devel
kernel-macros
kernel-source
kernel-debug
kernel-debug-livepatch-devel
kernel-debug-debugsource
kernel-debug-devel
gfs2-kmp-64kb-debuginfo
kernel-debug-debuginfo
kernel-debug-vdso-debuginfo
kernel-default-vdso-debuginfo
kernel-kvmsmall-vdso-debuginfo
kernel-debug-vdso
kernel-default-vdso
kernel-kvmsmall-vdso
kernel-kvmsmall-devel
dtb-mediatek
dtb-aarch64
kernel-64kb-devel
dtb-nvidia
dtb-amazon
dtb-apple
dtb-rockchip
dtb-marvell
dtb-xilinx
reiserfs-kmp-64kb-debuginfo
kernel-obs-qa
dtb-arm
cluster-md-kmp-64kb-debuginfo
dtb-exynos
kernel-64kb-extra-debuginfo
dtb-cavium
kselftests-kmp-64kb-debuginfo
ocfs2-kmp-64kb
kernel-64kb-livepatch-devel
ocfs2-kmp-default-debuginfo
kernel-zfcpdump-debugsource
dlm-kmp-default
kernel-default-livepatch
kernel-syms
reiserfs-kmp-default
kernel-default-optional-debuginfo
kernel-default-extra
kernel-default-livepatch-devel
cluster-md-kmp-default
gfs2-kmp-default
kernel-default-debuginfo
kernel-default
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debuginfo
kernel-default-base-rebuild
kernel-default-base
kernel-docs-html
kernel-docs
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-6.5.0-41-generic-64k (Ubuntu package)
linux-image-6.5.0-41-generic (Ubuntu package)
linux-image-6.5.0-1017-laptop (Ubuntu package)
linux-image-laptop-23.10 (Ubuntu package)
linux-image-6.5.0-1021-nvidia (Ubuntu package)
linux-image-6.5.0-1021-nvidia-64k (Ubuntu package)
linux-image-nvidia-6.5 (Ubuntu package)
linux-image-nvidia-64k-6.5 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-6.5.0-1022-oem (Ubuntu package)
linux-image-oem-22.04d (Ubuntu package)
linux-image-oem-22.04c (Ubuntu package)
linux-image-oem-22.04b (Ubuntu package)
linux-image-oem-22.04a (Ubuntu package)
linux-image-oem-22.04 (Ubuntu package)
IBM Storage Scale System

How to mitigate CVE-2023-52472

Install update from vendor's website.

Linux kernel - addressed in versions 6.6.14, 6.7.2, 6.8
kernel-livepatch-6_4_0-150600_10_5-rt-debuginfo - update to 1-150600.1.5.1
kernel-livepatch-6_4_0-150600_10_5-rt - update to 1-150600.1.5.1
kernel-livepatch-SLE15-SP6-RT_Update_1-debugsource - update to 1-150600.1.5.1
kernel-livepatch-SLE15-SP6_Update_3-debugsource - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_17-default-debuginfo - update to 1-150600.13.3.1
kernel-livepatch-6_4_0-150600_23_17-default - update to 1-150600.13.3.1
IBM Storage Scale System - addressed in versions 6.1.9.5, 6.2.2.0
kernel-syms-azure - addressed in versions 6.4.0-150600.8.5.1, 6.4.0-150600.8.8.1
kernel-azure-devel - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-extra - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kselftests-kmp-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-optional-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-vdso-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-vdso - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-devel-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-source-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
reiserfs-kmp-azure-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
reiserfs-kmp-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-extra-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
dlm-kmp-azure-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
dlm-kmp-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-optional - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
ocfs2-kmp-azure-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
gfs2-kmp-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-debugsource - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
ocfs2-kmp-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-livepatch-devel - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
cluster-md-kmp-azure - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
gfs2-kmp-azure-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kernel-azure-devel-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
cluster-md-kmp-azure-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
kselftests-kmp-azure-debuginfo - addressed in versions 6.4.0-150600.8.5.4, 6.4.0-150600.8.8.2
dlm-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
ocfs2-kmp-rt - update to 6.4.0-150600.10.5.1
kselftests-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt_debug-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-vdso-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-livepatch-devel - update to 6.4.0-150600.10.5.1
kernel-rt-optional-debuginfo - update to 6.4.0-150600.10.5.1
dlm-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt-extra - update to 6.4.0-150600.10.5.1
reiserfs-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt-debugsource - update to 6.4.0-150600.10.5.1
kernel-syms-rt - update to 6.4.0-150600.10.5.1
kernel-rt-optional - update to 6.4.0-150600.10.5.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-devel-rt - update to 6.4.0-150600.10.5.1
kernel-source-rt - update to 6.4.0-150600.10.5.1
kernel-rt_debug - update to 6.4.0-150600.10.5.1
kernel-rt - update to 6.4.0-150600.10.5.1
kernel-rt-vdso-debuginfo - update to 6.4.0-150600.10.5.1
cluster-md-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt_debug-livepatch-devel - update to 6.4.0-150600.10.5.1
kernel-rt-debuginfo - update to 6.4.0-150600.10.5.1
gfs2-kmp-rt - update to 6.4.0-150600.10.5.1
kernel-rt-extra-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-devel - update to 6.4.0-150600.10.5.1
reiserfs-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-debugsource - update to 6.4.0-150600.10.5.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kselftests-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt_debug-vdso - update to 6.4.0-150600.10.5.1
kernel-rt-vdso - update to 6.4.0-150600.10.5.1
kernel-rt_debug-devel-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-devel-debuginfo - update to 6.4.0-150600.10.5.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150600.10.5.1
kernel-rt-devel - update to 6.4.0-150600.10.5.1
cluster-md-kmp-64kb - update to 6.4.0-150600.23.17.1
kernel-64kb-optional-debuginfo - update to 6.4.0-150600.23.17.1
kernel-64kb-optional - update to 6.4.0-150600.23.17.1
dtb-renesas - update to 6.4.0-150600.23.17.1
kernel-64kb-debuginfo - update to 6.4.0-150600.23.17.1
dlm-kmp-64kb-debuginfo - update to 6.4.0-150600.23.17.1
reiserfs-kmp-64kb - update to 6.4.0-150600.23.17.1
dtb-altera - update to 6.4.0-150600.23.17.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150600.23.17.1
kernel-64kb-debugsource - update to 6.4.0-150600.23.17.1
dtb-allwinner - update to 6.4.0-150600.23.17.1
dtb-freescale - update to 6.4.0-150600.23.17.1
kernel-64kb-extra - update to 6.4.0-150600.23.17.1
dtb-qcom - update to 6.4.0-150600.23.17.1
dtb-amd - update to 6.4.0-150600.23.17.1
dtb-socionext - update to 6.4.0-150600.23.17.1
dtb-sprd - update to 6.4.0-150600.23.17.1
ocfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.17.1
kselftests-kmp-64kb - update to 6.4.0-150600.23.17.1
dtb-broadcom - update to 6.4.0-150600.23.17.1
dtb-amlogic - update to 6.4.0-150600.23.17.1
dtb-hisilicon - update to 6.4.0-150600.23.17.1
dtb-apm - update to 6.4.0-150600.23.17.1
gfs2-kmp-64kb - update to 6.4.0-150600.23.17.1
dtb-lg - update to 6.4.0-150600.23.17.1
kernel-64kb - update to 6.4.0-150600.23.17.1
dlm-kmp-64kb - update to 6.4.0-150600.23.17.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150600.23.17.1
kernel-kvmsmall-devel-debuginfo - update to 6.4.0-150600.23.17.1
kernel-kvmsmall-debugsource - update to 6.4.0-150600.23.17.1
kernel-kvmsmall-debuginfo - update to 6.4.0-150600.23.17.1
kernel-default-debugsource - update to 6.4.0-150600.23.17.1
ocfs2-kmp-default - update to 6.4.0-150600.23.17.1
kernel-default-devel-debuginfo - update to 6.4.0-150600.23.17.1
kernel-default-optional - update to 6.4.0-150600.23.17.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150600.23.17.1
kernel-kvmsmall-livepatch-devel - update to 6.4.0-150600.23.17.1
kernel-default-devel - update to 6.4.0-150600.23.17.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.17.1
kselftests-kmp-default - update to 6.4.0-150600.23.17.1
dlm-kmp-default-debuginfo - update to 6.4.0-150600.23.17.1
kernel-default-extra-debuginfo - update to 6.4.0-150600.23.17.1
kernel-obs-build - update to 6.4.0-150600.23.17.1
kernel-obs-build-debugsource - update to 6.4.0-150600.23.17.1
kselftests-kmp-default-debuginfo - update to 6.4.0-150600.23.17.1
kernel-debug-devel-debuginfo - update to 6.4.0-150600.23.17.1
kernel-source-vanilla - update to 6.4.0-150600.23.17.1
kernel-devel - update to 6.4.0-150600.23.17.1
kernel-macros - update to 6.4.0-150600.23.17.1
kernel-source - update to 6.4.0-150600.23.17.1
kernel-debug - update to 6.4.0-150600.23.17.1
kernel-debug-livepatch-devel - update to 6.4.0-150600.23.17.1
kernel-debug-debugsource - update to 6.4.0-150600.23.17.1
kernel-debug-devel - update to 6.4.0-150600.23.17.1
gfs2-kmp-64kb-debuginfo - update to 6.4.0-150600.23.17.1
kernel-debug-debuginfo - update to 6.4.0-150600.23.17.1
kernel-debug-vdso-debuginfo - update to 6.4.0-150600.23.17.1
kernel-default-vdso-debuginfo - update to 6.4.0-150600.23.17.1
kernel-kvmsmall-vdso-debuginfo - update to 6.4.0-150600.23.17.1
kernel-debug-vdso - update to 6.4.0-150600.23.17.1
kernel-default-vdso - update to 6.4.0-150600.23.17.1
kernel-kvmsmall-vdso - update to 6.4.0-150600.23.17.1
kernel-kvmsmall-devel - update to 6.4.0-150600.23.17.1
dtb-mediatek - update to 6.4.0-150600.23.17.1
dtb-aarch64 - update to 6.4.0-150600.23.17.1
kernel-64kb-devel - update to 6.4.0-150600.23.17.1
dtb-nvidia - update to 6.4.0-150600.23.17.1
dtb-amazon - update to 6.4.0-150600.23.17.1
dtb-apple - update to 6.4.0-150600.23.17.1
dtb-rockchip - update to 6.4.0-150600.23.17.1
dtb-marvell - update to 6.4.0-150600.23.17.1
dtb-xilinx - update to 6.4.0-150600.23.17.1
reiserfs-kmp-64kb-debuginfo - update to 6.4.0-150600.23.17.1
kernel-obs-qa - update to 6.4.0-150600.23.17.1
dtb-arm - update to 6.4.0-150600.23.17.1
cluster-md-kmp-64kb-debuginfo - update to 6.4.0-150600.23.17.1
dtb-exynos - update to 6.4.0-150600.23.17.1
kernel-64kb-extra-debuginfo - update to 6.4.0-150600.23.17.1
dtb-cavium - update to 6.4.0-150600.23.17.1
kselftests-kmp-64kb-debuginfo - update to 6.4.0-150600.23.17.1
ocfs2-kmp-64kb - update to 6.4.0-150600.23.17.1
kernel-64kb-livepatch-devel - update to 6.4.0-150600.23.17.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150600.23.17.1
kernel-zfcpdump-debugsource - update to 6.4.0-150600.23.17.1
dlm-kmp-default - update to 6.4.0-150600.23.17.1
kernel-default-livepatch - update to 6.4.0-150600.23.17.1
kernel-syms - update to 6.4.0-150600.23.17.1
reiserfs-kmp-default - update to 6.4.0-150600.23.17.1
kernel-default-optional-debuginfo - update to 6.4.0-150600.23.17.1
kernel-default-extra - update to 6.4.0-150600.23.17.1
kernel-default-livepatch-devel - update to 6.4.0-150600.23.17.1
cluster-md-kmp-default - update to 6.4.0-150600.23.17.1
gfs2-kmp-default - update to 6.4.0-150600.23.17.1
kernel-default-debuginfo - update to 6.4.0-150600.23.17.1
kernel-default - update to 6.4.0-150600.23.17.1
kernel-kvmsmall - update to 6.4.0-150600.23.17.1
kernel-zfcpdump - update to 6.4.0-150600.23.17.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150600.23.17.1
kernel-default-base-rebuild - update to 6.4.0-150600.23.17.1.150600.12.6.2
kernel-default-base - update to 6.4.0-150600.23.17.1.150600.12.6.2
kernel-docs-html - update to 6.4.0-150600.23.17.3
kernel-docs - update to 6.4.0-150600.23.17.3
linux-image-virtual-hwe-22.04 (Ubuntu package) - update to 6.5.0.41.41~22.04.2
linux-image-generic-hwe-22.04 (Ubuntu package) - update to 6.5.0.41.41~22.04.2
linux-image-generic-64k-hwe-22.04 (Ubuntu package) - update to 6.5.0.41.41~22.04.2
linux-image-6.5.0-41-generic-64k (Ubuntu package) - update to 6.5.0-41.41~22.04.2
linux-image-6.5.0-41-generic (Ubuntu package) - update to 6.5.0-41.41~22.04.2
linux-image-6.5.0-1017-laptop (Ubuntu package) - update to 6.5.0-1017.20
linux-image-laptop-23.10 (Ubuntu package) - update to 6.5.0.1017.20
linux-image-6.5.0-1021-nvidia (Ubuntu package) - update to 6.5.0-1021.22
linux-image-6.5.0-1021-nvidia-64k (Ubuntu package) - update to 6.5.0-1021.22
linux-image-nvidia-6.5 (Ubuntu package) - update to 6.5.0.1021.29
linux-image-nvidia-64k-6.5 (Ubuntu package) - update to 6.5.0.1021.29
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package) - update to 6.5.0.1021.29
linux-image-nvidia-hwe-22.04 (Ubuntu package) - update to 6.5.0.1021.29
linux-image-6.5.0-1022-oem (Ubuntu package) - update to 6.5.0-1022.23
linux-image-oem-22.04d (Ubuntu package) - update to 6.5.0.1022.24
linux-image-oem-22.04c (Ubuntu package) - update to 6.5.0.1022.24
linux-image-oem-22.04b (Ubuntu package) - update to 6.5.0.1022.24
linux-image-oem-22.04a (Ubuntu package) - update to 6.5.0.1022.24
linux-image-oem-22.04 (Ubuntu package) - update to 6.5.0.1022.24

External References

Related Security Bulletins