Race condition in Linux kernel - CVE-2023-6546
Published: January 9, 2024
Vulnerability identifier: #VU85241
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-2023-6546
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Affected software:
Linux kernel
Oracle Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for IBM z Systems
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
SUSE Linux Enterprise Live Patching
SUSE Real Time Module
SUSE Linux Enterprise Desktop 15 SP4 LTSS
SUSE Linux Enterprise Server 15 SP4 LTSS
Development Tools Module
Public Cloud Module
Legacy Module
Basesystem Module
openSUSE Leap
openEuler
IBM Integrated Analytics System
Red Hat Virtualization Host
Red Hat OpenShift Container Platform
Juniper Secure Analytics (JSA)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
kpatch-patch-4_18_0-372_91_1 (Red Hat package)
kpatch-patch-5_14_0-284_52_1 (Red Hat package)
kpatch-patch-4_18_0-372_87_1 (Red Hat package)
kpatch-patch-4_18_0-477_43_1 (Red Hat package)
kpatch-patch-4_18_0-513_11_1 (Red Hat package)
kpatch-patch-5_14_0-70_85_1 (Red Hat package)
kpatch-patch-5_14_0-284_48_1 (Red Hat package)
kpatch-patch-4_18_0-305_120_1 (Red Hat package)
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kpatch-patch-5_14_0-70_80_1 (Red Hat package)
kpatch-patch-5_14_0-284_40_1 (Red Hat package)
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kernel (Red Hat package)
kernel-rt (Red Hat package)
perf
kernel-debug-modules-extra
kernel-headers
kernel-modules
kernel-modules-extra
kernel-tools
kernel-tools-libs
python3-perf
kernel-debug-modules
kernel-debug-devel
kernel-debug-core
kernel-debug
kernel-cross-headers
kernel-core
kernel
bpftool
kernel-tools-libs-devel
kernel-abi-stablelists
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kernel-modules-internal
kernel-rt-debuginfo
dlm-kmp-rt
kernel-rt_debug-devel
cluster-md-kmp-rt
dlm-kmp-rt-debuginfo
kernel-rt-devel
ocfs2-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-syms-rt
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kernel-rt-devel-debuginfo
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kernel-rt-debugsource
gfs2-kmp-rt
kernel-devel-rt
kernel-source-rt
kernel-rt_debug
kernel-rt
gfs2-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
kernel-64kb-extra-debuginfo
dtb-amazon
cluster-md-kmp-64kb-debuginfo
dtb-marvell
dtb-apple
dtb-apm
dtb-xilinx
reiserfs-kmp-64kb
gfs2-kmp-64kb
dtb-qcom
dtb-nvidia
kernel-64kb-livepatch-devel
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dtb-amlogic
dtb-sprd
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dtb-altera
dtb-hisilicon
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dtb-lg
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dtb-freescale
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dtb-exynos
dtb-allwinner
dtb-cavium
dtb-arm
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kselftests-kmp-64kb
kernel-64kb-optional
dtb-rockchip
kernel-source-vanilla
kernel-kvmsmall-devel-debuginfo
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kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-devel
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kernel-default-debuginfo
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kernel-azure-vdso
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kernel-devel-azure
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IBM Security Guardium
Storage Copy Data Management
Security Verify Governance - Identity Manager virtual appliance
Storage Protect Plus Server
OpenShift Logging
IBM Qradar SIEM
Linux kernel
Oracle Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for IBM z Systems
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
SUSE Linux Enterprise Live Patching
SUSE Real Time Module
SUSE Linux Enterprise Desktop 15 SP4 LTSS
SUSE Linux Enterprise Server 15 SP4 LTSS
Development Tools Module
Public Cloud Module
Legacy Module
Basesystem Module
openSUSE Leap
openEuler
IBM Integrated Analytics System
Red Hat Virtualization Host
Red Hat OpenShift Container Platform
Juniper Secure Analytics (JSA)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
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IBM Security Guardium
Storage Copy Data Management
Security Verify Governance - Identity Manager virtual appliance
Storage Protect Plus Server
OpenShift Logging
IBM Qradar SIEM
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the GSM 0710 tty multiplexor in the Linux kernel. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
How to mitigate CVE-2023-6546
Install update from vendor's website.