Resource management error in Linux kernel - CVE-2023-53635

 

Resource management error in Linux kernel - CVE-2023-53635

Published: October 8, 2025 / Updated: October 26, 2025


Vulnerability identifier: #VU116826
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-2023-53635
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the ctnetlink_dump_status() and ctnetlink_create_conntrack() functions in net/netfilter/nf_conntrack_netlink.c. A local user can perform a denial of service (DoS) attack.


Affected software

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Live Patching
kgraft-patch-4_12_14-122_280-default
ocfs2-kmp-default
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-devel-debuginfo
kernel-default-man
kernel-macros
kernel-devel
kernel-source
kernel-default
kernel-default-base-debuginfo
kernel-default-debuginfo
gfs2-kmp-default-debuginfo
kernel-default-devel
cluster-md-kmp-default
dlm-kmp-default
cluster-md-kmp-default-debuginfo
dlm-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-debugsource
gfs2-kmp-default
kernel-default-base
kernel-syms

How to mitigate CVE-2023-53635

Install update from vendor's repository.

Linux kernel - update to 6.2.15
kgraft-patch-4_12_14-122_280-default - update to 1-8.5.1
ocfs2-kmp-default - update to 4.12.14-122.280.1
kernel-default-kgraft-devel - update to 4.12.14-122.280.1
kernel-default-kgraft - update to 4.12.14-122.280.1
kernel-default-devel-debuginfo - update to 4.12.14-122.280.1
kernel-default-man - update to 4.12.14-122.280.1
kernel-macros - update to 4.12.14-122.280.1
kernel-devel - update to 4.12.14-122.280.1
kernel-source - update to 4.12.14-122.280.1
kernel-default - update to 4.12.14-122.280.1
kernel-default-base-debuginfo - update to 4.12.14-122.280.1
kernel-default-debuginfo - update to 4.12.14-122.280.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.280.1
kernel-default-devel - update to 4.12.14-122.280.1
cluster-md-kmp-default - update to 4.12.14-122.280.1
dlm-kmp-default - update to 4.12.14-122.280.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.280.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.280.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.280.1
kernel-default-debugsource - update to 4.12.14-122.280.1
gfs2-kmp-default - update to 4.12.14-122.280.1
kernel-default-base - update to 4.12.14-122.280.1
kernel-syms - update to 4.12.14-122.280.1

External References

Related Security Bulletins