Out-of-bounds read in Linux kernel - CVE-2023-39193

Vulnerability identifier: #VU81920

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2023-39193

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
Amazon Linux AMI
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise High Availability Extension 12
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
SUSE Enterprise Storage
Anolis OS
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 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
Slackware Linux
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux
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 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
SUSE Real Time Module
openSUSE Leap
openEuler
RecoverPoint for Virtual Machines
IBM Qradar SIEM
Juniper Secure Analytics (JSA)
Dell EMC NetWorker vProxy
SmartFabric OS10
ObjectScale
Storage Copy Data Management
Technical Support Appliance
PowerFlex rack
IBM Cloud Pak for Watson AIOps
Storage Protect Plus Server
linux-image-aws (Ubuntu package)
linux-image-5.4.0-1063-ibm (Ubuntu package)
linux-image-4.4.0-1125-aws (Ubuntu package)
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-5.4.0-1116-aws (Ubuntu package)
linux-image-4.4.0-248-lowlatency (Ubuntu package)
linux-image-4.4.0-248-generic (Ubuntu package)
linux-image-4.4.0-1163-aws (Ubuntu package)
linux-image-4.4.0-1126-kvm (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-5.4.0-1115-oracle (Ubuntu package)
linux-image-5.4.0-1100-raspi (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-4.15.0-1147-kvm (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-5.4.0-169-lowlatency (Ubuntu package)
linux-image-5.4.0-169-generic (Ubuntu package)
linux-image-5.4.0-1121-azure (Ubuntu package)
linux-image-5.4.0-1120-gcp (Ubuntu package)
linux-image-4.15.0-1163-aws (Ubuntu package)
linux-image-4.15.0-1172-azure (Ubuntu package)
linux-image-4.15.0-1157-gcp (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-4.15.0-220-generic (Ubuntu package)
linux-image-4.15.0-220-lowlatency (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-4.15.0-1126-oracle (Ubuntu package)
kgraft-patch-4_12_14-122_179-default
kernel-livepatch-4_12_14-150100_197_160-default
kernel-livepatch-5_3_18-150200_24_169-default-debuginfo
kernel-livepatch-5_3_18-150200_24_169-default
kernel-livepatch-SLE15-SP2_Update_42-debugsource
kernel-livepatch-5_3_18-150300_59_141-default-debuginfo
kernel-livepatch-SLE15-SP3_Update_38-debugsource
kernel-livepatch-5_3_18-150300_59_141-default
kernel-livepatch-5_3_18-150300_59_141-preempt
kernel-livepatch-5_3_18-150300_59_141-preempt-debuginfo
kernel-livepatch-SLE15-SP4-RT_Update_14-debugsource
kernel-livepatch-5_14_21-150400_15_56-rt
kernel-livepatch-5_14_21-150400_15_56-rt-debuginfo
kernel-livepatch-SLE15-SP4_Update_19-debugsource
kernel-livepatch-5_14_21-150400_24_92-default
kernel-livepatch-5_14_21-150400_24_92-default-debuginfo
kernel-livepatch-5_14_21-150400_24_97-default
kernel-livepatch-SLE15-SP4_Update_20-debugsource
kernel-livepatch-5_14_21-150400_24_97-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_6-debugsource
kernel-livepatch-5_14_21-150500_55_31-default-debuginfo
kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource
kernel-livepatch-5_14_21-150500_55_31-default
kernel-livepatch-5_14_21-150500_13_24-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo
kernel-livepatch-5_14_21-150500_13_24-rt
kernel-livepatch-5_14_21-150500_13_21-rt
kernel-livepatch-SLE15-SP5-RT_Update_7-debugsource
kernel-livepatch-5_14_21-150500_55_36-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_7-debugsource
kernel-livepatch-5_14_21-150500_55_36-default
kernel-xen-devel
kernel-trace-base
kernel-syms
kernel-trace-devel
kernel-default-base
kernel-ec2-base
kernel-default-devel
kernel-ec2-devel
kernel-source
kernel-xen-base
kernel-xen
kernel-trace
kernel-default
kernel-ec2
kernel-rt_debug-debugsource
kernel-rt-debugsource
gfs2-kmp-rt
kernel-rt-base-debuginfo
kernel-rt_debug-devel-debuginfo
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-base
kernel-rt-debuginfo
kernel-rt_debug-devel
dlm-kmp-rt
kernel-devel-rt
kernel-source-rt
kernel-rt
kernel-rt_debug
kernel-rt-devel
kernel-rt-devel-debuginfo
ocfs2-kmp-rt
kernel-rt_debug-debuginfo
kernel-syms-rt
cluster-md-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-azure
kernel-source-azure
kernel-azure-base-debuginfo
kernel-devel-azure
kernel-syms-azure
kernel-azure-debugsource
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-base
kernel-default-debugsource
ocfs2-kmp-default
kernel-default-kgraft-devel
kernel-default-debuginfo
kernel-default-kgraft
kernel-docs
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-base-debuginfo
kernel-default-extra
kernel-default-extra-debuginfo
kernel-macros
kernel-devel
kernel-default-devel-debuginfo
kernel-default-man
gfs2-kmp-default
dlm-kmp-default-debuginfo
dlm-kmp-default
ocfs2-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
cluster-md-kmp-default-debuginfo
kernel-zfcpdump
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-vanilla-devel-debuginfo
kernel-debug
kernel-kvmsmall
kernel-debug-base
kernel-debug-base-debuginfo
kernel-vanilla-debuginfo
kernel-vanilla-base
kernel-vanilla-devel
kernel-vanilla-livepatch-devel
kernel-vanilla-base-debuginfo
kernel-vanilla-debugsource
kernel-kvmsmall-base-debuginfo
kernel-kvmsmall-base
kernel-vanilla
kernel-zfcpdump-man
kernel-default-livepatch-devel
kernel-default-livepatch
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-doc
kernel-abi-stablelists
kernel-debug-devel
kernel-debug-core
kernel-cross-headers
kernel-core
kernel
bpftool
kernel-debug-modules
kernel-debug-modules-extra
kernel-headers
kernel-modules
kernel-modules-extra
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
kernel-tools-devel
kernel-tools-debuginfo
python2-perf-debuginfo
bpftool-debuginfo
python3-perf-debuginfo
kernel-debuginfo
perf-debuginfo
python2-perf
kernel-debugsource
kernel-preempt-devel-debuginfo
kernel-preempt-devel
kernel-preempt-debuginfo
kernel-preempt-debugsource
kernel-preempt
kernel-source-vanilla
kernel-obs-qa
dtb-altera
dtb-rockchip
dtb-broadcom
dtb-zte
dtb-amd
dtb-renesas
dtb-marvell
dtb-amlogic
dtb-freescale
dtb-al
dtb-lg
dtb-xilinx
dtb-aarch64
dtb-cavium
dtb-apm
dtb-arm
dtb-mediatek
dtb-nvidia
dtb-allwinner
dtb-hisilicon
dtb-exynos
dtb-sprd
dtb-socionext
dtb-qcom
kernel-debug-debuginfo
kernel-debug-livepatch-devel
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
kernel-debug-debugsource
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-debugsource
kselftests-kmp-default
dlm-kmp-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
reiserfs-kmp-64kb-debuginfo
kernel-64kb-debugsource
cluster-md-kmp-64kb
dlm-kmp-64kb
kernel-64kb-extra
kernel-64kb-devel
kernel-64kb
kernel-docs-html
kernel-kvmsmall-devel-debuginfo
kernel-64kb-devel-debuginfo
ocfs2-kmp-64kb-debuginfo
kernel-debug-devel-debuginfo
kernel-preempt-optional
reiserfs-kmp-preempt-debuginfo
kernel-preempt-livepatch-devel
dlm-kmp-preempt
kernel-preempt-extra-debuginfo
kernel-preempt-extra
gfs2-kmp-preempt
reiserfs-kmp-preempt
cluster-md-kmp-preempt
ocfs2-kmp-preempt-debuginfo
reiserfs-kmp-64kb
kselftests-kmp-64kb
gfs2-kmp-64kb
kernel-64kb-debuginfo
kernel-64kb-extra-debuginfo
kselftests-kmp-64kb-debuginfo
kernel-64kb-livepatch-devel
kernel-64kb-optional
cluster-md-kmp-64kb-debuginfo
ocfs2-kmp-64kb
kernel-64kb-optional-debuginfo
kernel-default-optional-debuginfo
kernel-default-optional
kselftests-kmp-default-debuginfo
kselftests-kmp-preempt-debuginfo
dlm-kmp-preempt-debuginfo
ocfs2-kmp-preempt
gfs2-kmp-preempt-debuginfo
kselftests-kmp-preempt
cluster-md-kmp-preempt-debuginfo
kernel-preempt-optional-debuginfo
kernel-default-base-rebuild
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-169-generic-lpae (Ubuntu package)
linux-image-5.4.0-1028-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1035-xilinx-zynqmp (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1076-bluefield (Ubuntu package)
linux-image-gkeop-5.4 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.4.0-1083-gkeop (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-5.4.0-1104-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)
gfs2-kmp-azure-debuginfo
kernel-azure-extra-debuginfo
kernel-azure-devel-debuginfo
cluster-md-kmp-azure
dlm-kmp-azure-debuginfo
ocfs2-kmp-azure-debuginfo
cluster-md-kmp-azure-debuginfo
ocfs2-kmp-azure
kernel-azure-optional
kernel-azure-optional-debuginfo
kselftests-kmp-azure
reiserfs-kmp-azure-debuginfo
kselftests-kmp-azure-debuginfo
gfs2-kmp-azure
dlm-kmp-azure
kernel-azure-extra
kernel-azure-livepatch-devel
reiserfs-kmp-azure
dtb-amazon
dtb-apple
kernel-rt-vdso
kernel-rt_debug-livepatch-devel
kernel-rt-optional
kernel-rt-vdso-debuginfo
kernel-rt-livepatch
kernel-rt-extra
kernel-rt_debug-vdso-debuginfo
kernel-rt-optional-debuginfo
kselftests-kmp-rt-debuginfo
kernel-rt-livepatch-devel
kernel-rt_debug-vdso
kernel-rt-extra-debuginfo
reiserfs-kmp-rt
reiserfs-kmp-rt-debuginfo
kselftests-kmp-rt
kernel-azure-vdso
kernel-azure-vdso-debuginfo
kernel-debug-vdso
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
linux-image-generic-64k (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-91-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-91-lowlatency (Ubuntu package)
linux-image-5.15.0-91-generic (Ubuntu package)
linux-image-5.15.0-91-generic-64k (Ubuntu package)
linux-image-5.15.0-91-generic-lpae (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-5.15.0-1034-gkeop (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1042-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1042-nvidia (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1044-ibm (Ubuntu package)
linux-image-5.15.0-1044-raspi (Ubuntu package)
linux-image-5.15.0-1046-intel-iotg (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1048-kvm (Ubuntu package)
linux-image-5.15.0-1048-gke (Ubuntu package)
linux-image-5.15.0-1048-gcp (Ubuntu package)
linux-image-oracle-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1049-oracle (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1051-aws (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1053-azure (Ubuntu package)
linux-image-5.15.0-1053-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux-image-azure-fde-lts-22.04 (Ubuntu package)
linux-5.15.139/kernel-modules
linux-5.15.139/kernel-huge
linux-5.15.139/kernel-generic
linux-5.15.139/kernel-headers
linux-image-6.2.0-39-generic (Ubuntu package)
linux-image-6.2.0-39-generic-64k (Ubuntu package)
linux-image-6.2.0-39-generic-lpae (Ubuntu package)
linux-image-virtual-hwe-22.04 (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-6.2.0-1010-starfive (Ubuntu package)
linux-image-starfive (Ubuntu package)
linux-image-6.2.0-1013-nvidia-64k (Ubuntu package)
linux-image-6.2.0-1013-nvidia (Ubuntu package)
linux-image-nvidia-6.2 (Ubuntu package)
linux-image-nvidia-64k-6.2 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-6.2.0-1017-aws (Ubuntu package)
linux-image-6.2.0-1017-oracle (Ubuntu package)
linux-image-6.2.0-1018-lowlatency-64k (Ubuntu package)
linux-image-6.2.0-1018-lowlatency (Ubuntu package)
linux-image-6.2.0-1018-kvm (Ubuntu package)
linux-image-6.2.0-1018-azure (Ubuntu package)
linux-image-6.2.0-1018-azure-fde (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-6.2.0-1018-raspi (Ubuntu package)
linux-image-6.2.0-1020-gcp (Ubuntu package)
linux-image-6.2.0-1021-gcp (Ubuntu package)
IBM Cloud Object Storage Systems
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)
RecoverPoint for VMs
Dell EMC VxRail Appliance

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the sctp_mt_check() function in Netfilter subsystem in Linux kernel. A local user with CAP_NET_ADMIN capability can trigger an out-of-bounds read error and read contents of memory on the system.

Install updates from vendor's website.

• https://bugzilla.redhat.com/show_bug.cgi?id=2226787
• https://www.zerodayinitiative.com/advisories/ZDI-CAN-18866/
• https://lore.kernel.org/all/20230828221255.124812-1-wander@redhat.com/