Buffer overflow in Linux kernel - CVE-2023-52527

Vulnerability identifier: #VU93245

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2023-52527

CWE-ID: CWE-119

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 memory corruption within the l2tp_ip6_sendmsg() function in net/l2tp/l2tp_ip6.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
Ubuntu
SmartFabric OS10
linux-image-generic (Ubuntu package)
linux-image-4.15.0-1135-oracle (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-4.4.0-1137-kvm (Ubuntu package)
linux-image-4.4.0-1174-aws (Ubuntu package)
linux-image-4.4.0-259-generic (Ubuntu package)
linux-image-4.4.0-259-lowlatency (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-4.15.0-1156-kvm (Ubuntu package)
linux-image-generic-lts-utopic (Ubuntu package)
linux-image-generic-lts-vivid (Ubuntu package)
linux-image-generic-lts-wily (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-lowlatency-lts-utopic (Ubuntu package)
linux-image-lowlatency-lts-vivid (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-oracle-lts-18.04 (Ubuntu package)
linux-image-lowlatency-lts-wily (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-4.15.0-229-lowlatency (Ubuntu package)
linux-image-4.15.0-229-generic (Ubuntu package)
linux-image-4.15.0-1181-azure (Ubuntu package)
linux-image-4.15.0-1173-aws (Ubuntu package)
linux-image-4.15.0-1166-gcp (Ubuntu package)
linux-image-virtual-lts-utopic (Ubuntu package)
linux-image-virtual-lts-vivid (Ubuntu package)
linux-image-virtual-lts-wily (Ubuntu package)
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-4.4.0-1136-aws (Ubuntu package)
kgraft-patch-4_12_14-122_219-default
kernel-rt-debuginfo
ocfs2-kmp-rt
gfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-syms-rt
kernel-rt_debug-devel-debuginfo
cluster-md-kmp-rt
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debugsource
kernel-rt-debugsource
kernel-rt-devel
gfs2-kmp-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-rt-base
kernel-rt-base-debuginfo
dlm-kmp-rt
kernel-rt_debug-debuginfo
kernel-rt_debug-devel
kernel-devel-rt
kernel-source-rt
kernel-rt
kernel-rt_debug
kernel-azure-base
kernel-syms-azure
kernel-azure-debuginfo
kernel-azure-devel
kernel-azure-base-debuginfo
kernel-azure-debugsource
kernel-devel-azure
kernel-source-azure
kernel-azure
kernel-obs-build
kernel-default-extra
kernel-default-base-debuginfo
kernel-default-base
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-syms
cluster-md-kmp-default
kernel-default-debugsource
dlm-kmp-default
kernel-default-devel
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-debuginfo
gfs2-kmp-default
kernel-default
kernel-macros
kernel-source
kernel-devel
kernel-default-devel-debuginfo
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-docs
kernel-obs-build-debugsource
kernel-default-man
kernel-default-extra-debuginfo
Dell Secure Connect Gateway

Install update from vendor's website.

Linux kernel - addressed in versions 4.14.327, 4.19.296, 5.4.258, 5.10.198, 5.15.135, 6.1.57, 6.5.7, 6.6
SmartFabric OS10 - update to 10.5.4.11
linux-image-generic (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-4.15.0-1135-oracle (Ubuntu package) - update to Ubuntu Pro
linux-image-oem (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-oracle (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-virtual-hwe-16.04 (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-4.4.0-1137-kvm (Ubuntu package) - update to Ubuntu Pro
linux-image-4.4.0-1174-aws (Ubuntu package) - update to Ubuntu Pro
linux-image-4.4.0-259-generic (Ubuntu package) - update to Ubuntu Pro
linux-image-4.4.0-259-lowlatency (Ubuntu package) - update to Ubuntu Pro
linux-image-aws (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-4.15.0-1156-kvm (Ubuntu package) - update to Ubuntu Pro
linux-image-generic-lts-utopic (Ubuntu package) - update to Ubuntu Pro
linux-image-generic-lts-vivid (Ubuntu package) - update to Ubuntu Pro
linux-image-generic-lts-wily (Ubuntu package) - update to Ubuntu Pro
linux-image-generic-lts-xenial (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-kvm (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-lowlatency (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-lowlatency-lts-utopic (Ubuntu package) - update to Ubuntu Pro
linux-image-lowlatency-lts-vivid (Ubuntu package) - update to Ubuntu Pro
linux-image-lowlatency-lts-xenial (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-lowlatency-hwe-16.04 (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-gke (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-generic-hwe-16.04 (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-gcp (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-azure (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-aws-hwe (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-virtual (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-oracle-lts-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-lowlatency-lts-wily (Ubuntu package) - update to Ubuntu Pro
linux-image-gcp-lts-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-azure-lts-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-aws-lts-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-4.15.0-229-lowlatency (Ubuntu package) - update to Ubuntu Pro
linux-image-4.15.0-229-generic (Ubuntu package) - update to Ubuntu Pro
linux-image-4.15.0-1181-azure (Ubuntu package) - update to Ubuntu Pro
linux-image-4.15.0-1173-aws (Ubuntu package) - update to Ubuntu Pro
linux-image-4.15.0-1166-gcp (Ubuntu package) - update to Ubuntu Pro
linux-image-virtual-lts-utopic (Ubuntu package) - update to Ubuntu Pro
linux-image-virtual-lts-vivid (Ubuntu package) - update to Ubuntu Pro
linux-image-virtual-lts-wily (Ubuntu package) - update to Ubuntu Pro
linux-image-virtual-lts-xenial (Ubuntu package) - update to Ubuntu Pro (Infra-only)
linux-image-4.4.0-1136-aws (Ubuntu package) - update to Ubuntu Pro
kgraft-patch-4_12_14-122_219-default - update to 1-8.3.1
kernel-rt-debuginfo - update to 4.12.14-10.188.1
ocfs2-kmp-rt - update to 4.12.14-10.188.1
gfs2-kmp-rt - update to 4.12.14-10.188.1
ocfs2-kmp-rt-debuginfo - update to 4.12.14-10.188.1
kernel-syms-rt - update to 4.12.14-10.188.1
kernel-rt_debug-devel-debuginfo - update to 4.12.14-10.188.1
cluster-md-kmp-rt - update to 4.12.14-10.188.1
dlm-kmp-rt-debuginfo - update to 4.12.14-10.188.1
cluster-md-kmp-rt-debuginfo - update to 4.12.14-10.188.1
kernel-rt_debug-debugsource - update to 4.12.14-10.188.1
kernel-rt-debugsource - update to 4.12.14-10.188.1
kernel-rt-devel - update to 4.12.14-10.188.1
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.188.1
kernel-rt-devel-debuginfo - update to 4.12.14-10.188.1
kernel-rt-base - update to 4.12.14-10.188.1
kernel-rt-base-debuginfo - update to 4.12.14-10.188.1
dlm-kmp-rt - update to 4.12.14-10.188.1
kernel-rt_debug-debuginfo - update to 4.12.14-10.188.1
kernel-rt_debug-devel - update to 4.12.14-10.188.1
kernel-devel-rt - update to 4.12.14-10.188.1
kernel-source-rt - update to 4.12.14-10.188.1
kernel-rt - update to 4.12.14-10.188.1
kernel-rt_debug - update to 4.12.14-10.188.1
kernel-azure-base - update to 4.12.14-16.188.1
kernel-syms-azure - update to 4.12.14-16.188.1
kernel-azure-debuginfo - update to 4.12.14-16.188.1
kernel-azure-devel - update to 4.12.14-16.188.1
kernel-azure-base-debuginfo - update to 4.12.14-16.188.1
kernel-azure-debugsource - update to 4.12.14-16.188.1
kernel-devel-azure - update to 4.12.14-16.188.1
kernel-source-azure - update to 4.12.14-16.188.1
kernel-azure - update to 4.12.14-16.188.1
kernel-obs-build - update to 4.12.14-122.219.1
kernel-default-extra - update to 4.12.14-122.219.1
kernel-default-base-debuginfo - update to 4.12.14-122.219.1
kernel-default-base - update to 4.12.14-122.219.1
ocfs2-kmp-default - update to 4.12.14-122.219.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.219.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.219.1
kernel-syms - update to 4.12.14-122.219.1
cluster-md-kmp-default - update to 4.12.14-122.219.1
kernel-default-debugsource - update to 4.12.14-122.219.1
dlm-kmp-default - update to 4.12.14-122.219.1
kernel-default-devel - update to 4.12.14-122.219.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.219.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.219.1
kernel-default-debuginfo - update to 4.12.14-122.219.1
gfs2-kmp-default - update to 4.12.14-122.219.1
kernel-default - update to 4.12.14-122.219.1
kernel-macros - update to 4.12.14-122.219.1
kernel-source - update to 4.12.14-122.219.1
kernel-devel - update to 4.12.14-122.219.1
kernel-default-devel-debuginfo - update to 4.12.14-122.219.1
kernel-default-kgraft - update to 4.12.14-122.219.1
kernel-default-kgraft-devel - update to 4.12.14-122.219.1
kernel-docs - update to 4.12.14-122.219.1
kernel-obs-build-debugsource - update to 4.12.14-122.219.1
kernel-default-man - update to 4.12.14-122.219.1
kernel-default-extra-debuginfo - update to 4.12.14-122.219.1
Dell Secure Connect Gateway - update to 5.26.00.18

• https://git.kernel.org/stable/c/7626b9fed53092aa2147978070e610ecb61af844
• https://git.kernel.org/stable/c/559d697c5d072593d22b3e0bd8b8081108aeaf59
• https://git.kernel.org/stable/c/1fc793d68d50dee4782ef2e808913d5dd880bcc6
• https://git.kernel.org/stable/c/96b2e1090397217839fcd6c9b6d8f5d439e705ed
• https://git.kernel.org/stable/c/cd1189956393bf850b2e275e37411855d3bd86bb
• https://git.kernel.org/stable/c/f6a7182179c0ed788e3755ee2ed18c888ddcc33f
• https://git.kernel.org/stable/c/fe80658c08e3001c80c5533cd41abfbb0e0e28fd
• https://git.kernel.org/stable/c/9d4c75800f61e5d75c1659ba201b6c0c7ead3070
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.327
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.296
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.198
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.135
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.258
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.57
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.7
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6

• Buffer overflow in Linux kernel l2tp
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Multiple vulnerabilities in Dell SmartFabric OS10
• Ubuntu update for linux
• Ubuntu update for linux
• Ubuntu update for linux-azure
• Multiple vulnerabilities in Dell Secure Connect Gateway