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CVE-2023-53372

8.2 · HIGH

In the Linux kernel, the following vulnerability has been resolved: sctp: fix a potential overflow in sctp_ifwdtsn_skip Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only c…

Published Sep 18, 2025CWE-787EPSS 0.39%

Overview

CVE-2023-53372 is a high-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

sctp: fix a potential overflow in sctp_ifwdtsn_skip

Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only

checks the pos against the end of the chunk. However, the data left for

the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference

it as struct sctp_ifwdtsn_skip may cause coverflow.

This patch fixes it by checking the pos against "the end of the chunk -

sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to

sctp_fwdtsn_skip.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649Refgit.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4Refgit.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57Refgit.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6fRefgit.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5Refgit.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7Refgit.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53372?

CVE-2023-53372 is a high-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2023-53372?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-53372?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-53372?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53372 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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