CVE-2022-47940

high

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.

References

Advisories
More

https://github.com/torvalds/linux/commit/158a66b245739e15858de42c0ba60fcf3de9b8e6

http://www.openwall.com/lists/oss-security/2022/12/23/10

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=158a66b245739e15858de42c0ba60fcf3de9b8e6

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18

Details

Source: Mitre, NVD

Published: 2022-12-23

Updated: 2025-04-14

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:C

Severity: High

CVSS v3

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H