CVE-2023-4515

critical · 9.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed ("ksmbd: validate command payload size"), except for SMB2_OPLOCK_BREAK_HE command, the request size of other commands is not checked, it's not expected. Fix it by add check for request size of other commands.

9.1

CVSS

0.3%

EPSS (exploit prob.)

23rd

EPSS percentile

2025-08-16

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

Vendor	Product	Affected versions
linux	linux_kernel	>= 5.15.121, < 5.15.127
linux	linux_kernel	>= 6.1.36, < 6.1.46
linux	linux_kernel	>= 6.3.10, < 6.4
linux	linux_kernel	>= 6.4.1, < 6.4.11
linux	linux_kernel	6.4
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5
linux	linux_kernel	6.5

Check a specific version with /api/v1/cve/match.

References

https://git.kernel.org/stable/c/595679098bdcdbfbba91ebe07a2f7f208df93870
https://git.kernel.org/stable/c/5aa4fda5aa9c2a5a7bac67b4a12b089ab81fee3c
https://git.kernel.org/stable/c/c6bef3bc30fd4a175aef846b7d928a6c40d091cd
https://git.kernel.org/stable/c/ff7236b66d69582f90cf5616e63cfc3dc18142bb

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2023-4515