Improper update of reference count in Linux kernel - CVE-2023-2019

Vulnerability identifier: #VU75101

CSH Severity: Low

CVSS v4: 5.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-2019

CWE-ID: CWE-911

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to improper update of reference count within the scheduling of events in drivers/net/netdevsim/fib.c. A local privileged user can perform a denial of service (DoS) attack.

Linux kernel
Amazon Linux AMI
SUSE Linux Enterprise Workstation 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 Real Time 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Manager Server
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Micro
openSUSE Leap Micro
Development Tools Module
SUSE Real Time Module
SUSE Linux Enterprise Live Patching
Public Cloud Module
Legacy Module
Basesystem Module
openSUSE Leap
ObjectScale
kernel-livepatch-5_14_21-150400_15_28-rt
kernel-livepatch-5_14_21-150400_15_28-rt-debuginfo
kernel-livepatch-SLE15-SP4-RT_Update_7-debugsource
kernel-livepatch-SLE15-SP4_Update_12-debugsource
kernel-livepatch-5_14_21-150400_24_63-default-debuginfo
kernel-livepatch-5_14_21-150400_24_63-default
gfs2-kmp-azure
kselftests-kmp-azure
kselftests-kmp-azure-debuginfo
reiserfs-kmp-azure
cluster-md-kmp-azure-debuginfo
kernel-syms-azure
reiserfs-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
kernel-azure-extra
gfs2-kmp-azure-debuginfo
ocfs2-kmp-azure
kernel-azure-debugsource
kernel-azure-optional-debuginfo
dlm-kmp-azure-debuginfo
dlm-kmp-azure
kernel-azure-debuginfo
kernel-azure-livepatch-devel
kernel-azure-optional
cluster-md-kmp-azure
kernel-azure-extra-debuginfo
kernel-azure-devel
ocfs2-kmp-azure-debuginfo
kernel-devel-azure
kernel-source-azure
kernel-azure
kernel-devel-rt
kernel-source-rt
kernel-syms-rt
dlm-kmp-rt
kernel-rt_debug
kernel-rt
kernel-rt-debuginfo
kernel-rt_debug-debuginfo
kernel-rt-devel-debuginfo
kernel-rt-debugsource
cluster-md-kmp-rt-debuginfo
kernel-rt-devel
dlm-kmp-rt-debuginfo
gfs2-kmp-rt
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-rt_debug-devel
kernel-rt_debug-debugsource
ocfs2-kmp-rt-debuginfo
ocfs2-kmp-rt
kselftests-kmp-64kb
dtb-hisilicon
cluster-md-kmp-64kb
gfs2-kmp-64kb
dtb-rockchip
dtb-freescale
dtb-amd
dlm-kmp-64kb
dtb-arm
dtb-broadcom
kernel-default
dtb-nvidia
kernel-64kb-livepatch-devel
dtb-lg
cluster-md-kmp-64kb-debuginfo
dtb-marvell
kernel-64kb-debugsource
kernel-64kb-devel-debuginfo
dtb-exynos
dtb-aarch64
kernel-64kb
dtb-xilinx
kernel-debug
cluster-md-kmp-default
gfs2-kmp-default
ocfs2-kmp-default
kernel-default-extra-debuginfo
reiserfs-kmp-default-debuginfo
kernel-obs-qa
kselftests-kmp-default-debuginfo
kselftests-kmp-default
gfs2-kmp-default-debuginfo
kernel-debug-livepatch-devel
kernel-debug-devel-debuginfo
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-debug-devel
kernel-kvmsmall-devel
dtb-apm
kernel-kvmsmall-devel-debuginfo
dlm-kmp-default-debuginfo
kernel-default-debuginfo
kernel-default-debugsource
kernel-syms
kernel-obs-build
kernel-default-devel
kernel-default-optional-debuginfo
kernel-default-extra
kernel-obs-build-debugsource
kernel-kvmsmall-debugsource
kernel-default-livepatch-devel
kernel-default-devel-debuginfo
dlm-kmp-default
kernel-default-livepatch
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
reiserfs-kmp-default
kernel-default-optional
kernel-64kb-extra-debuginfo
ocfs2-kmp-64kb-debuginfo
kernel-kvmsmall-debuginfo
dtb-socionext
dtb-renesas
dtb-apple
dlm-kmp-64kb-debuginfo
dtb-amazon
dtb-qcom
reiserfs-kmp-64kb
reiserfs-kmp-64kb-debuginfo
kernel-64kb-debuginfo
dtb-mediatek
dtb-cavium
dtb-altera
dtb-sprd
kernel-64kb-optional-debuginfo
kernel-64kb-devel
ocfs2-kmp-64kb
kernel-docs
kernel-kvmsmall-livepatch-devel
kernel-devel
kernel-docs-html
kernel-source
kernel-macros
kernel-source-vanilla
kselftests-kmp-64kb-debuginfo
kernel-kvmsmall
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
dtb-allwinner
kernel-64kb-extra
dtb-amlogic
gfs2-kmp-64kb-debuginfo
kernel-64kb-optional
kernel-default-base-rebuild
kernel-default-base
kernel
Dell EMC VxRail Appliance

Install updates from vendor's website.

ObjectScale - update to 1.4.0
kernel-livepatch-5_14_21-150400_15_28-rt - update to 1-150400.1.5.2
kernel-livepatch-5_14_21-150400_15_28-rt-debuginfo - update to 1-150400.1.5.2
kernel-livepatch-SLE15-SP4-RT_Update_7-debugsource - update to 1-150400.1.5.2
kernel-livepatch-SLE15-SP4_Update_12-debugsource - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_63-default-debuginfo - update to 1-150400.9.3.1
kernel-livepatch-5_14_21-150400_24_63-default - update to 1-150400.9.3.1
gfs2-kmp-azure - update to 5.14.21-150400.14.49.1
kselftests-kmp-azure - update to 5.14.21-150400.14.49.1
kselftests-kmp-azure-debuginfo - update to 5.14.21-150400.14.49.1
reiserfs-kmp-azure - update to 5.14.21-150400.14.49.1
cluster-md-kmp-azure-debuginfo - update to 5.14.21-150400.14.49.1
kernel-syms-azure - update to 5.14.21-150400.14.49.1
reiserfs-kmp-azure-debuginfo - update to 5.14.21-150400.14.49.1
kernel-azure-devel-debuginfo - update to 5.14.21-150400.14.49.1
kernel-azure-extra - update to 5.14.21-150400.14.49.1
gfs2-kmp-azure-debuginfo - update to 5.14.21-150400.14.49.1
ocfs2-kmp-azure - update to 5.14.21-150400.14.49.1
kernel-azure-debugsource - update to 5.14.21-150400.14.49.1
kernel-azure-optional-debuginfo - update to 5.14.21-150400.14.49.1
dlm-kmp-azure-debuginfo - update to 5.14.21-150400.14.49.1
dlm-kmp-azure - update to 5.14.21-150400.14.49.1
kernel-azure-debuginfo - update to 5.14.21-150400.14.49.1
kernel-azure-livepatch-devel - update to 5.14.21-150400.14.49.1
kernel-azure-optional - update to 5.14.21-150400.14.49.1
cluster-md-kmp-azure - update to 5.14.21-150400.14.49.1
kernel-azure-extra-debuginfo - update to 5.14.21-150400.14.49.1
kernel-azure-devel - update to 5.14.21-150400.14.49.1
ocfs2-kmp-azure-debuginfo - update to 5.14.21-150400.14.49.1
kernel-devel-azure - update to 5.14.21-150400.14.49.1
kernel-source-azure - update to 5.14.21-150400.14.49.1
kernel-azure - update to 5.14.21-150400.14.49.1
kernel-devel-rt - update to 5.14.21-150400.15.28.1
kernel-source-rt - update to 5.14.21-150400.15.28.1
kernel-syms-rt - update to 5.14.21-150400.15.28.1
dlm-kmp-rt - update to 5.14.21-150400.15.28.2
kernel-rt_debug - update to 5.14.21-150400.15.28.2
kernel-rt - update to 5.14.21-150400.15.28.2
kernel-rt-debuginfo - update to 5.14.21-150400.15.28.2
kernel-rt_debug-debuginfo - update to 5.14.21-150400.15.28.2
kernel-rt-devel-debuginfo - update to 5.14.21-150400.15.28.2
kernel-rt-debugsource - update to 5.14.21-150400.15.28.2
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150400.15.28.2
kernel-rt-devel - update to 5.14.21-150400.15.28.2
dlm-kmp-rt-debuginfo - update to 5.14.21-150400.15.28.2
gfs2-kmp-rt - update to 5.14.21-150400.15.28.2
gfs2-kmp-rt-debuginfo - update to 5.14.21-150400.15.28.2
cluster-md-kmp-rt - update to 5.14.21-150400.15.28.2
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150400.15.28.2
kernel-rt_debug-devel - update to 5.14.21-150400.15.28.2
kernel-rt_debug-debugsource - update to 5.14.21-150400.15.28.2
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150400.15.28.2
ocfs2-kmp-rt - update to 5.14.21-150400.15.28.2
kselftests-kmp-64kb - update to 5.14.21-150400.24.63.1
dtb-hisilicon - update to 5.14.21-150400.24.63.1
cluster-md-kmp-64kb - update to 5.14.21-150400.24.63.1
gfs2-kmp-64kb - update to 5.14.21-150400.24.63.1
dtb-rockchip - update to 5.14.21-150400.24.63.1
dtb-freescale - update to 5.14.21-150400.24.63.1
dtb-amd - update to 5.14.21-150400.24.63.1
dlm-kmp-64kb - update to 5.14.21-150400.24.63.1
dtb-arm - update to 5.14.21-150400.24.63.1
dtb-broadcom - update to 5.14.21-150400.24.63.1
kernel-default - update to 5.14.21-150400.24.63.1
dtb-nvidia - update to 5.14.21-150400.24.63.1
kernel-64kb-livepatch-devel - update to 5.14.21-150400.24.63.1
dtb-lg - update to 5.14.21-150400.24.63.1
cluster-md-kmp-64kb-debuginfo - update to 5.14.21-150400.24.63.1
dtb-marvell - update to 5.14.21-150400.24.63.1
kernel-64kb-debugsource - update to 5.14.21-150400.24.63.1
kernel-64kb-devel-debuginfo - update to 5.14.21-150400.24.63.1
dtb-exynos - update to 5.14.21-150400.24.63.1
dtb-aarch64 - update to 5.14.21-150400.24.63.1
kernel-64kb - update to 5.14.21-150400.24.63.1
dtb-xilinx - update to 5.14.21-150400.24.63.1
kernel-debug - update to 5.14.21-150400.24.63.1
cluster-md-kmp-default - update to 5.14.21-150400.24.63.1
gfs2-kmp-default - update to 5.14.21-150400.24.63.1
ocfs2-kmp-default - update to 5.14.21-150400.24.63.1
kernel-default-extra-debuginfo - update to 5.14.21-150400.24.63.1
reiserfs-kmp-default-debuginfo - update to 5.14.21-150400.24.63.1
kernel-obs-qa - update to 5.14.21-150400.24.63.1
kselftests-kmp-default-debuginfo - update to 5.14.21-150400.24.63.1
kselftests-kmp-default - update to 5.14.21-150400.24.63.1
gfs2-kmp-default-debuginfo - update to 5.14.21-150400.24.63.1
kernel-debug-livepatch-devel - update to 5.14.21-150400.24.63.1
kernel-debug-devel-debuginfo - update to 5.14.21-150400.24.63.1
kernel-debug-debuginfo - update to 5.14.21-150400.24.63.1
kernel-debug-debugsource - update to 5.14.21-150400.24.63.1
kernel-debug-devel - update to 5.14.21-150400.24.63.1
kernel-kvmsmall-devel - update to 5.14.21-150400.24.63.1
dtb-apm - update to 5.14.21-150400.24.63.1
kernel-kvmsmall-devel-debuginfo - update to 5.14.21-150400.24.63.1
dlm-kmp-default-debuginfo - update to 5.14.21-150400.24.63.1
kernel-default-debuginfo - update to 5.14.21-150400.24.63.1
kernel-default-debugsource - update to 5.14.21-150400.24.63.1
kernel-syms - update to 5.14.21-150400.24.63.1
kernel-obs-build - update to 5.14.21-150400.24.63.1
kernel-default-devel - update to 5.14.21-150400.24.63.1
kernel-default-optional-debuginfo - update to 5.14.21-150400.24.63.1
kernel-default-extra - update to 5.14.21-150400.24.63.1
kernel-obs-build-debugsource - update to 5.14.21-150400.24.63.1
kernel-kvmsmall-debugsource - update to 5.14.21-150400.24.63.1
kernel-default-livepatch-devel - update to 5.14.21-150400.24.63.1
kernel-default-devel-debuginfo - update to 5.14.21-150400.24.63.1
dlm-kmp-default - update to 5.14.21-150400.24.63.1
kernel-default-livepatch - update to 5.14.21-150400.24.63.1
cluster-md-kmp-default-debuginfo - update to 5.14.21-150400.24.63.1
ocfs2-kmp-default-debuginfo - update to 5.14.21-150400.24.63.1
reiserfs-kmp-default - update to 5.14.21-150400.24.63.1
kernel-default-optional - update to 5.14.21-150400.24.63.1
kernel-64kb-extra-debuginfo - update to 5.14.21-150400.24.63.1
ocfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.63.1
kernel-kvmsmall-debuginfo - update to 5.14.21-150400.24.63.1
dtb-socionext - update to 5.14.21-150400.24.63.1
dtb-renesas - update to 5.14.21-150400.24.63.1
dtb-apple - update to 5.14.21-150400.24.63.1
dlm-kmp-64kb-debuginfo - update to 5.14.21-150400.24.63.1
dtb-amazon - update to 5.14.21-150400.24.63.1
dtb-qcom - update to 5.14.21-150400.24.63.1
reiserfs-kmp-64kb - update to 5.14.21-150400.24.63.1
reiserfs-kmp-64kb-debuginfo - update to 5.14.21-150400.24.63.1
kernel-64kb-debuginfo - update to 5.14.21-150400.24.63.1
dtb-mediatek - update to 5.14.21-150400.24.63.1
dtb-cavium - update to 5.14.21-150400.24.63.1
dtb-altera - update to 5.14.21-150400.24.63.1
dtb-sprd - update to 5.14.21-150400.24.63.1
kernel-64kb-optional-debuginfo - update to 5.14.21-150400.24.63.1
kernel-64kb-devel - update to 5.14.21-150400.24.63.1
ocfs2-kmp-64kb - update to 5.14.21-150400.24.63.1
kernel-docs - update to 5.14.21-150400.24.63.1
kernel-kvmsmall-livepatch-devel - update to 5.14.21-150400.24.63.1
kernel-devel - update to 5.14.21-150400.24.63.1
kernel-docs-html - update to 5.14.21-150400.24.63.1
kernel-source - update to 5.14.21-150400.24.63.1
kernel-macros - update to 5.14.21-150400.24.63.1
kernel-source-vanilla - update to 5.14.21-150400.24.63.1
kselftests-kmp-64kb-debuginfo - update to 5.14.21-150400.24.63.1
kernel-kvmsmall - update to 5.14.21-150400.24.63.1
kernel-zfcpdump - update to 5.14.21-150400.24.63.1
kernel-zfcpdump-debugsource - update to 5.14.21-150400.24.63.1
kernel-zfcpdump-debuginfo - update to 5.14.21-150400.24.63.1
dtb-allwinner - update to 5.14.21-150400.24.63.1
kernel-64kb-extra - update to 5.14.21-150400.24.63.1
dtb-amlogic - update to 5.14.21-150400.24.63.1
gfs2-kmp-64kb-debuginfo - update to 5.14.21-150400.24.63.1
kernel-64kb-optional - update to 5.14.21-150400.24.63.1
kernel-default-base-rebuild - update to 5.14.21-150400.24.63.1.150400.24.27.1
kernel-default-base - update to 5.14.21-150400.24.63.1.150400.24.27.1
kernel - update to 6.1.10-15.42
Dell EMC VxRail Appliance - update to 8.0.101

• https://www.zerodayinitiative.com/advisories/ZDI-23-442/
• https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=180a6a3ee60a

• Local denial of service in Linux Kernel netdevsim
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Multiple vulnerabilities in Dell EMC VxRail Appliance
• Amazon Linux AMI update for kernel
• Multiple vulnerabilities in Dell ObjectScale