Buffer overflow in Linux kernel - CVE-2022-50570

Vulnerability identifier: #VU117603

CSH Severity: Low

CVSS v4: 8.5 [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]

CVE-ID: CVE-2022-50570

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the cros_ec_chardev_ioctl_readmem() function in drivers/platform/chrome/cros_ec_chardev.c. A local user can escalate privileges on the system.

Linux kernel
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
SUSE Manager Proxy 4.3
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Availability 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 Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Linux Enterprise Live Patching
openSUSE Leap
kernel-livepatch-5_14_21-150400_24_184-default-debuginfo
kernel-livepatch-SLE15-SP4_Update_46-debugsource
kernel-livepatch-5_14_21-150400_24_184-default
kernel-livepatch-SLE15-SP5_Update_32-debugsource
kernel-livepatch-5_14_21-150500_55_127-default
kernel-livepatch-5_14_21-150500_55_127-default-debuginfo
kernel-source-rt
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-rt
kernel-64kb-debugsource
dtb-mediatek
dtb-hisilicon
dtb-amazon
dtb-xilinx
dtb-marvell
cluster-md-kmp-64kb
gfs2-kmp-64kb
reiserfs-kmp-64kb-debuginfo
dtb-rockchip
dtb-arm
dtb-broadcom
cluster-md-kmp-64kb-debuginfo
kernel-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
dtb-exynos
ocfs2-kmp-64kb
dlm-kmp-64kb-debuginfo
kernel-64kb-optional-debuginfo
kernel-64kb-devel-debuginfo
kernel-docs
kernel-64kb
dtb-apm
dtb-amd
dtb-nvidia
ocfs2-kmp-64kb-debuginfo
dtb-renesas
dtb-qcom
dtb-amlogic
dtb-altera
kernel-64kb-optional
reiserfs-kmp-64kb
dtb-allwinner
dtb-sprd
kselftests-kmp-64kb-debuginfo
dlm-kmp-64kb
kernel-64kb-extra-debuginfo
kernel-docs-html
kselftests-kmp-64kb
dtb-cavium
dtb-apple
dlm-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-extra
kernel-syms
ocfs2-kmp-default-debuginfo
ocfs2-kmp-default
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-devel-debuginfo
kernel-default-livepatch
kselftests-kmp-default-debuginfo
dtb-lg
cluster-md-kmp-default
dlm-kmp-default
kernel-kvmsmall-devel-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-devel
kernel-kvmsmall-debuginfo
kernel-source
kernel-macros
kernel-devel
kernel-source-vanilla
reiserfs-kmp-default-debuginfo
dtb-socionext
kernel-64kb-devel
kernel-64kb-extra
dtb-freescale
dtb-aarch64
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-zfcpdump
kernel-kvmsmall
kernel-default-livepatch-devel
kernel-default-optional-debuginfo
kernel-default
kernel-default-optional
kernel-default-extra-debuginfo
kernel-obs-qa
kernel-default-debugsource
reiserfs-kmp-default
kselftests-kmp-default
gfs2-kmp-default
kernel-default-debuginfo
kernel-default-devel
kernel-default-base-rebuild
kernel-default-base
kernel-rt_debug-devel
ocfs2-kmp-rt-debuginfo
reiserfs-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
reiserfs-kmp-rt
dlm-kmp-rt
dlm-kmp-rt-debuginfo
kernel-rt-extra-debuginfo
kernel-rt-vdso
kernel-rt-optional-debuginfo
kernel-rt_debug-devel-debuginfo
kselftests-kmp-rt-debuginfo
kernel-rt_debug
ocfs2-kmp-rt
kernel-devel-rt
kernel-rt_debug-debugsource
kernel-rt_debug-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
gfs2-kmp-rt
kernel-rt-extra
kernel-syms-rt
kernel-rt-devel
kselftests-kmp-rt
kernel-rt-livepatch-devel
kernel-rt-optional
kernel-rt_debug-vdso
kernel-rt_debug-vdso-debuginfo
kernel-rt-livepatch
kernel-default-vdso-debuginfo
kernel-default-vdso
kernel-kvmsmall-vdso
kernel-kvmsmall-vdso-debuginfo

Install update from vendor's repository.

Linux kernel - update to 5.15.75
kernel-livepatch-5_14_21-150400_24_184-default-debuginfo - update to 1-150400.9.5.1
kernel-livepatch-SLE15-SP4_Update_46-debugsource - update to 1-150400.9.5.1
kernel-livepatch-5_14_21-150400_24_184-default - update to 1-150400.9.5.1
kernel-livepatch-SLE15-SP5_Update_32-debugsource - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_127-default - update to 1-150500.11.3.1
kernel-livepatch-5_14_21-150500_55_127-default-debuginfo - update to 1-150500.11.3.1
kernel-source-rt - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-rt-debugsource - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-rt-debuginfo - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-rt - addressed in versions 5.14.21-150400.15.136.1, 5.14.21-150500.13.112.1
kernel-64kb-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-mediatek - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-hisilicon - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-amazon - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-xilinx - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-marvell - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
cluster-md-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
gfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-rockchip - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-arm - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-broadcom - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
cluster-md-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
gfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-exynos - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-optional-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-devel-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-docs - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-apm - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-amd - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-nvidia - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-renesas - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-qcom - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-amlogic - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-altera - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-optional - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-allwinner - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-sprd - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-64kb-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-extra-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-docs-html - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-64kb - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-cavium - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-apple - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
gfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
cluster-md-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-extra - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-syms - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
ocfs2-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-obs-build - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-obs-build-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-devel-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-livepatch - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-lg - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
cluster-md-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dlm-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-devel-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-source - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-macros - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-source-vanilla - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-socionext - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-64kb-extra - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-freescale - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
dtb-aarch64 - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-zfcpdump-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-zfcpdump-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-zfcpdump - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-kvmsmall - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-livepatch-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-optional-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-optional - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-extra-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-obs-qa - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-debugsource - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
reiserfs-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kselftests-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
gfs2-kmp-default - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-debuginfo - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-devel - addressed in versions 5.14.21-150400.24.184.1, 5.14.21-150500.55.127.1
kernel-default-base-rebuild - addressed in versions 5.14.21-150400.24.184.1.150400.24.94.2, 5.14.21-150500.55.127.1.150500.6.61.1
kernel-default-base - addressed in versions 5.14.21-150400.24.184.1.150400.24.94.2, 5.14.21-150500.55.127.1.150500.6.61.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.112.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.112.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.112.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.112.1
dlm-kmp-rt - update to 5.14.21-150500.13.112.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-vdso - update to 5.14.21-150500.13.112.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.112.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt_debug - update to 5.14.21-150500.13.112.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-devel-rt - update to 5.14.21-150500.13.112.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.112.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.112.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.112.1
gfs2-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-rt-extra - update to 5.14.21-150500.13.112.1
kernel-syms-rt - update to 5.14.21-150500.13.112.1
kernel-rt-devel - update to 5.14.21-150500.13.112.1
kselftests-kmp-rt - update to 5.14.21-150500.13.112.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.112.1
kernel-rt-optional - update to 5.14.21-150500.13.112.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.112.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.112.1
kernel-rt-livepatch - update to 5.14.21-150500.13.112.1
kernel-default-vdso-debuginfo - update to 5.14.21-150500.55.127.1
kernel-default-vdso - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-vdso - update to 5.14.21-150500.55.127.1
kernel-kvmsmall-vdso-debuginfo - update to 5.14.21-150500.55.127.1

• https://git.kernel.org/stable/c/0c2e18924504208644d18415667895a4ac54cf2a
• https://git.kernel.org/stable/c/868fc93b615b9f6c2b0b1894536618fa6cd66acc
• https://git.kernel.org/stable/c/8a07b45fd3c2dda24fad43639be5335a4595196a
• https://git.kernel.org/stable/c/e548f9503c4b3292a60a63fe77dccea62999a35a
• https://git.kernel.org/stable/c/f143f1d9a8e5c6c9db3de81ca270191226fcce36
• https://git.kernel.org/stable/c/fd1d3b265784a2243fcaef06aebfb2f8ee733cec
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75

• Buffer overflow in Linux kernel platform chrome driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel