ksmbd: fix out-of-bound read in smb2_write
ksmbd_smb2_check_message doesn't validate hdr->NextCommand. If
->NextCommand is bigger than Offset + Length of smb2 write, It will
allow oversized smb2 write length. It will cause OOB read in smb2_write.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
Ubuntu USN |
USN-6416-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6416-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6416-3 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-6445-1 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-6445-2 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-6464-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6466-1 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-6520-1 | Linux kernel (StarFive) vulnerabilities |
Tue, 18 Nov 2025 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-125 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4:rc7:*:*:*:*:*:* |
|
| Metrics |
cvssV3_1
|
Mon, 18 Aug 2025 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Sat, 16 Aug 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bound read in smb2_write ksmbd_smb2_check_message doesn't validate hdr->NextCommand. If ->NextCommand is bigger than Offset + Length of smb2 write, It will allow oversized smb2 write length. It will cause OOB read in smb2_write. | |
| Title | ksmbd: fix out-of-bound read in smb2_write | |
| References |
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T19:27:09.295Z
Reserved: 2023-07-24T14:52:38.053Z
Link: CVE-2023-3865
No data.
Status : Analyzed
Published: 2025-08-16T14:15:27.250
Modified: 2025-11-18T17:57:24.790
Link: CVE-2023-3865
No data.
OpenCVE Enrichment
Updated: 2025-08-18T20:49:59Z
Ubuntu USN