Use of uninitialized resource in Linux kernel - CVE-2021-47297

Vulnerability identifier: #VU90870

CSH Severity: Low

CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47297

CWE-ID: CWE-908

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 use of uninitialized resource within the caif_seqpkt_sendmsg() function in net/caif/caif_socket.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
openEuler
kgraft-patch-4_12_14-122_222-default
cluster-md-kmp-rt
gfs2-kmp-rt-debuginfo
kernel-rt-debuginfo
kernel-syms-rt
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-devel-debuginfo
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-devel
dlm-kmp-rt
kernel-rt-devel-debuginfo
kernel-rt-base-debuginfo
kernel-rt_debug-devel
kernel-source-rt
kernel-devel-rt
kernel-rt_debug
kernel-rt
kernel-rt-debugsource
kernel-rt-base
kernel-rt_debug-debuginfo
kernel-rt_debug-debugsource
gfs2-kmp-rt
dlm-kmp-rt-debuginfo
kernel-azure-base-debuginfo
kernel-source-azure
kernel-devel-azure
kernel-azure-debugsource
kernel-syms-azure
kernel-azure-devel
kernel-azure-debuginfo
kernel-azure-base
kernel-azure
kernel-default-debuginfo
dlm-kmp-default-debuginfo
gfs2-kmp-default
kernel-default-devel
kernel-syms
ocfs2-kmp-default-debuginfo
kernel-default-extra-debuginfo
ocfs2-kmp-default
kernel-default-base
kernel-default
kernel-devel
kernel-source
kernel-macros
kernel-default-devel-debuginfo
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-docs
kernel-obs-build-debugsource
kernel-obs-build
kernel-default-man
kernel-default-extra
kernel-default-base-debuginfo
cluster-md-kmp-default-debuginfo
dlm-kmp-default
kernel-default-debugsource
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
kernel
python2-perf
kernel-tools-debuginfo
python2-perf-debuginfo
kernel-tools
bpftool
python3-perf
kernel-debugsource
bpftool-debuginfo
kernel-tools-devel
perf-debuginfo
perf
kernel-debuginfo
python3-perf-debuginfo

Install update from vendor's website.

Linux kernel - addressed in versions 4.4.277, 4.9.277, 4.14.241, 4.19.199, 5.4.136, 5.10.54, 5.13.6, 5.14
kgraft-patch-4_12_14-122_222-default - update to 1-8.3.1
cluster-md-kmp-rt - update to 4.12.14-10.191.1
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.191.1
kernel-rt-debuginfo - update to 4.12.14-10.191.1
kernel-syms-rt - update to 4.12.14-10.191.1
cluster-md-kmp-rt-debuginfo - update to 4.12.14-10.191.1
kernel-rt_debug-devel-debuginfo - update to 4.12.14-10.191.1
ocfs2-kmp-rt - update to 4.12.14-10.191.1
ocfs2-kmp-rt-debuginfo - update to 4.12.14-10.191.1
kernel-rt-devel - update to 4.12.14-10.191.1
dlm-kmp-rt - update to 4.12.14-10.191.1
kernel-rt-devel-debuginfo - update to 4.12.14-10.191.1
kernel-rt-base-debuginfo - update to 4.12.14-10.191.1
kernel-rt_debug-devel - update to 4.12.14-10.191.1
kernel-source-rt - update to 4.12.14-10.191.1
kernel-devel-rt - update to 4.12.14-10.191.1
kernel-rt_debug - update to 4.12.14-10.191.1
kernel-rt - update to 4.12.14-10.191.1
kernel-rt-debugsource - update to 4.12.14-10.191.1
kernel-rt-base - update to 4.12.14-10.191.1
kernel-rt_debug-debuginfo - update to 4.12.14-10.191.1
kernel-rt_debug-debugsource - update to 4.12.14-10.191.1
gfs2-kmp-rt - update to 4.12.14-10.191.1
dlm-kmp-rt-debuginfo - update to 4.12.14-10.191.1
kernel-azure-base-debuginfo - update to 4.12.14-16.191.1
kernel-source-azure - update to 4.12.14-16.191.1
kernel-devel-azure - update to 4.12.14-16.191.1
kernel-azure-debugsource - update to 4.12.14-16.191.1
kernel-syms-azure - update to 4.12.14-16.191.1
kernel-azure-devel - update to 4.12.14-16.191.1
kernel-azure-debuginfo - update to 4.12.14-16.191.1
kernel-azure-base - update to 4.12.14-16.191.1
kernel-azure - update to 4.12.14-16.191.1
kernel-default-debuginfo - update to 4.12.14-122.222.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.222.1
gfs2-kmp-default - update to 4.12.14-122.222.1
kernel-default-devel - update to 4.12.14-122.222.1
kernel-syms - update to 4.12.14-122.222.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.222.1
kernel-default-extra-debuginfo - update to 4.12.14-122.222.1
ocfs2-kmp-default - update to 4.12.14-122.222.1
kernel-default-base - update to 4.12.14-122.222.1
kernel-default - update to 4.12.14-122.222.1
kernel-devel - update to 4.12.14-122.222.1
kernel-source - update to 4.12.14-122.222.1
kernel-macros - update to 4.12.14-122.222.1
kernel-default-devel-debuginfo - update to 4.12.14-122.222.1
kernel-default-kgraft-devel - update to 4.12.14-122.222.1
kernel-default-kgraft - update to 4.12.14-122.222.1
kernel-docs - update to 4.12.14-122.222.1
kernel-obs-build-debugsource - update to 4.12.14-122.222.1
kernel-obs-build - update to 4.12.14-122.222.1
kernel-default-man - update to 4.12.14-122.222.1
kernel-default-extra - update to 4.12.14-122.222.1
kernel-default-base-debuginfo - update to 4.12.14-122.222.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.222.1
dlm-kmp-default - update to 4.12.14-122.222.1
kernel-default-debugsource - update to 4.12.14-122.222.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.222.1
cluster-md-kmp-default - update to 4.12.14-122.222.1
kernel - update to 4.19.90-2406.1.0.0279
python2-perf - update to 4.19.90-2406.1.0.0279
kernel-tools-debuginfo - update to 4.19.90-2406.1.0.0279
python2-perf-debuginfo - update to 4.19.90-2406.1.0.0279
kernel-tools - update to 4.19.90-2406.1.0.0279
kernel-devel - update to 4.19.90-2406.1.0.0279
bpftool - update to 4.19.90-2406.1.0.0279
kernel-source - update to 4.19.90-2406.1.0.0279
python3-perf - update to 4.19.90-2406.1.0.0279
kernel-debugsource - update to 4.19.90-2406.1.0.0279
bpftool-debuginfo - update to 4.19.90-2406.1.0.0279
kernel-tools-devel - update to 4.19.90-2406.1.0.0279
perf-debuginfo - update to 4.19.90-2406.1.0.0279
perf - update to 4.19.90-2406.1.0.0279
kernel-debuginfo - update to 4.19.90-2406.1.0.0279
python3-perf-debuginfo - update to 4.19.90-2406.1.0.0279

• https://git.kernel.org/stable/c/d9d646acad2c3590e189bb5d5c86ab8bd8a2dfc3
• https://git.kernel.org/stable/c/5c6d8e2f7187b8e45a18c27acb7a3885f03ee3db
• https://git.kernel.org/stable/c/ffe31dd70b70a40cd6b21b78c1713a23e021843a
• https://git.kernel.org/stable/c/452c3ed7bf63721b07bc2238ed1261bb26027e85
• https://git.kernel.org/stable/c/9413c0abb57f70a953b1116318d6aa478013c35d
• https://git.kernel.org/stable/c/1582a02fecffcee306663035a295e28e1c4aaaff
• https://git.kernel.org/stable/c/d4c7797ab1517515f0d08b3bc1c6b48883889c54
• https://git.kernel.org/stable/c/991e634360f2622a683b48dfe44fe6d9cb765a09
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.241
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.199
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.277
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.277
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.54
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.6
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.136

• Use of uninitialized resource in Linux kernel caif
• 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