Vulnerability Details : CVE-2022-47940
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.
Products affected by CVE-2022-47940
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-47940
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-47940
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
2.8
|
5.2
|
NIST |
CWE ids for CVE-2022-47940
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-47940
-
http://www.openwall.com/lists/oss-security/2022/12/23/10
oss-security - Re: Details on this supposed Linux Kernel ksmbd RCEMailing List;Third Party Advisory
-
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=158a66b245739e15858de42c0ba60fcf3de9b8e6
Mailing List;Patch;Vendor Advisory
-
https://github.com/torvalds/linux/commit/158a66b245739e15858de42c0ba60fcf3de9b8e6
ksmbd: validate length in smb2_write() · torvalds/linux@158a66b · GitHubPatch;Third Party Advisory
-
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18
Mailing List;Patch;Vendor Advisory
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