CVE-2023-53372

HIGH EPSS 5.0%
Published Sep 18, 20259mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Sep 18, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
5.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥4.16  –  <4.19.281
linuxlinux_kernel*≥4.20  –  <5.4.241
linuxlinux_kernel*≥5.5  –  <5.10.178
linuxlinux_kernel*≥5.11  –  <5.15.108
linuxlinux_kernel*≥5.16  –  <6.1.25
linuxlinux_kernel*≥6.2  –  <6.2.12
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any
linuxlinux_kernel6.3any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73
    Patch