NULL pointer dereference in Linux kernel - CVE-2021-47060

Vulnerability identifier: #VU92997

CSH Severity: Low

CVSS v4 BT: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47060

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local privileged user to execute arbitrary code on the target system.

The vulnerability exists due to a NULL pointer dereference error. A local privileged user can pass specially crafted data to the application and execute arbitrary code on the target system.

Linux kernel
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Live Patching
openEuler
kgraft-patch-4_12_14-122_212-default
ocfs2-kmp-rt-debuginfo
kernel-rt-debugsource
dlm-kmp-rt-debuginfo
kernel-rt-debuginfo
cluster-md-kmp-rt
gfs2-kmp-rt
kernel-rt-devel
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
dlm-kmp-rt
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-syms-rt
kernel-rt-devel-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-base
kernel-rt-base-debuginfo
kernel-rt_debug-devel
kernel-devel-rt
kernel-rt_debug-devel-debuginfo
kernel-source-rt
kernel-rt_debug
kernel-rt
kernel-azure-debuginfo
kernel-syms-azure
kernel-azure-base-debuginfo
kernel-azure
kernel-azure-debugsource
kernel-azure-devel
kernel-azure-base
kernel-devel-azure
kernel-source-azure
kernel-default
cluster-md-kmp-default
kernel-default-extra-debuginfo
kernel-source
kernel-macros
kernel-devel
kernel-default-devel-debuginfo
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-docs
cluster-md-kmp-default-debuginfo
kernel-syms
kernel-default-extra
kernel-default-man
kernel-obs-build-debugsource
kernel-obs-build
ocfs2-kmp-default
kernel-default-base
kernel-default-devel
dlm-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-debugsource
gfs2-kmp-default-debuginfo
gfs2-kmp-default
dlm-kmp-default-debuginfo
kernel-default-base-debuginfo
kernel-default-debuginfo
python2-perf-debuginfo
kernel-debugsource
python2-perf
perf
python3-perf
kernel-tools-devel
perf-debuginfo
python3-perf-debuginfo
kernel-tools
bpftool-debuginfo
kernel-tools-debuginfo
bpftool
kernel-debuginfo
kernel
EMC Cloud Tiering Appliance

Install updates from vendor's website.

Linux kernel - addressed in versions 5.4.119, 5.10.37, 5.11.21, 5.12.4, 5.13
kgraft-patch-4_12_14-122_212-default - update to 1-8.11.1
ocfs2-kmp-rt-debuginfo - update to 4.12.14-10.182.1
kernel-rt-debugsource - update to 4.12.14-10.182.1
dlm-kmp-rt-debuginfo - update to 4.12.14-10.182.1
kernel-rt-debuginfo - update to 4.12.14-10.182.1
cluster-md-kmp-rt - update to 4.12.14-10.182.1
gfs2-kmp-rt - update to 4.12.14-10.182.1
kernel-rt-devel - update to 4.12.14-10.182.1
cluster-md-kmp-rt-debuginfo - update to 4.12.14-10.182.1
kernel-rt_debug-debuginfo - update to 4.12.14-10.182.1
dlm-kmp-rt - update to 4.12.14-10.182.1
ocfs2-kmp-rt - update to 4.12.14-10.182.1
kernel-rt_debug-debugsource - update to 4.12.14-10.182.1
kernel-syms-rt - update to 4.12.14-10.182.1
kernel-rt-devel-debuginfo - update to 4.12.14-10.182.1
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.182.1
kernel-rt-base - update to 4.12.14-10.182.1
kernel-rt-base-debuginfo - update to 4.12.14-10.182.1
kernel-rt_debug-devel - update to 4.12.14-10.182.1
kernel-devel-rt - update to 4.12.14-10.182.1
kernel-rt_debug-devel-debuginfo - update to 4.12.14-10.182.1
kernel-source-rt - update to 4.12.14-10.182.1
kernel-rt_debug - update to 4.12.14-10.182.1
kernel-rt - update to 4.12.14-10.182.1
kernel-azure-debuginfo - update to 4.12.14-16.182.1
kernel-syms-azure - update to 4.12.14-16.182.1
kernel-azure-base-debuginfo - update to 4.12.14-16.182.1
kernel-azure - update to 4.12.14-16.182.1
kernel-azure-debugsource - update to 4.12.14-16.182.1
kernel-azure-devel - update to 4.12.14-16.182.1
kernel-azure-base - update to 4.12.14-16.182.1
kernel-devel-azure - update to 4.12.14-16.182.1
kernel-source-azure - update to 4.12.14-16.182.1
kernel-default - update to 4.12.14-122.212.1
cluster-md-kmp-default - update to 4.12.14-122.212.1
kernel-default-extra-debuginfo - update to 4.12.14-122.212.1
kernel-source - update to 4.12.14-122.212.1
kernel-macros - update to 4.12.14-122.212.1
kernel-devel - update to 4.12.14-122.212.1
kernel-default-devel-debuginfo - update to 4.12.14-122.212.1
kernel-default-kgraft-devel - update to 4.12.14-122.212.1
kernel-default-kgraft - update to 4.12.14-122.212.1
kernel-docs - update to 4.12.14-122.212.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.212.1
kernel-syms - update to 4.12.14-122.212.1
kernel-default-extra - update to 4.12.14-122.212.1
kernel-default-man - update to 4.12.14-122.212.1
kernel-obs-build-debugsource - update to 4.12.14-122.212.1
kernel-obs-build - update to 4.12.14-122.212.1
ocfs2-kmp-default - update to 4.12.14-122.212.1
kernel-default-base - update to 4.12.14-122.212.1
kernel-default-devel - update to 4.12.14-122.212.1
dlm-kmp-default - update to 4.12.14-122.212.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.212.1
kernel-default-debugsource - update to 4.12.14-122.212.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.212.1
gfs2-kmp-default - update to 4.12.14-122.212.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.212.1
kernel-default-base-debuginfo - update to 4.12.14-122.212.1
kernel-default-debuginfo - update to 4.12.14-122.212.1
kernel-source - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
python2-perf-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-debugsource - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
python2-perf - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
perf - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
python3-perf - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-tools-devel - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
perf-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
python3-perf-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-tools - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
bpftool-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-tools-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
bpftool - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-debuginfo - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel-devel - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
kernel - addressed in versions 4.19.90-2404.2.0.0246, 4.19.90-2404.2.0.0273
EMC Cloud Tiering Appliance - update to 13.2.0.2.29

• https://git.kernel.org/stable/c/7d1bc32d6477ff96a32695ea4be8144e4513ab2d
• https://git.kernel.org/stable/c/2a20592baff59c5351c5200ec667e1a2aa22af85
• https://git.kernel.org/stable/c/168e82f640ed1891a700bdb43e37da354b2ab63c
• https://git.kernel.org/stable/c/50cbad42bfea8c052b7ca590bd4126cdc898713c
• https://git.kernel.org/stable/c/5d3c4c79384af06e3c8e25b7770b6247496b4417

• Multiple vulnerabilities in Dell Cloud Tiering Appliance
• openEuler 20.03 LTS SP1 update for kernel
• openEuler 20.03 LTS SP4 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel