CVE-2023-38428
9.1
CRITICAL · CVSS 3.1 · EPSS 3.2% (pctl 88)
In your normal cycle
Critical by CVSS (9.1), but no sign of active exploitation.
Description
An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/smb2pdu.c in ksmbd does not properly check the UserName value because it does not consider the address of security buffer, leading to an out-of-bounds read.
Scoring
| CVSS | 9.1 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| EPSS | 3.16% — more likely to be exploited than 88% of all CVEs |
| Weakness | CWE-125 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2023-07-18 |
| Last modified | 2026-06-17 |
Affected (7)
| Vendor | Product |
|---|---|
| linux | linux kernel |
| netapp | h300s |
| netapp | h410s |
| netapp | h500s |
| netapp | h700s |
| netapp | solidfire \& hci management node |
| netapp | solidfire \& hci storage node |
References
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/ksmbd?id=f0a96d1aafd8964e1f9955c830a3e5cb3c60a90f
- https://security.netapp.com/advisory/ntap-20230831-0001/
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/ksmbd?id=f0a96d1aafd8964e1f9955c830a3e5cb3c60a90f
- https://security.netapp.com/advisory/ntap-20230831-0001/
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