UBUNTU-CVE-2023-3865
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.
02 / AFFECTED SOFTWARE
Affected packages
3 explicit affected versions
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12 explicit affected versions
26 explicit affected versions
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10 explicit affected versions
7 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
2 explicit affected versions
13 explicit affected versions
26 explicit affected versions
21 explicit affected versions
37 explicit affected versions
38 explicit affected versions
25 explicit affected versions
9 explicit affected versions
25 explicit affected versions
11 explicit affected versions
32 explicit affected versions
3 explicit affected versions
6 explicit affected versions
4 explicit affected versions
1 explicit affected versions
30 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
10 explicit affected versions
4 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/5fe7f7b78290638806211046a99f031ff26164e1
- https://lore.kernel.org/all/[email protected]/
- https://ubuntu.com/security/CVE-2023-3865
- https://ubuntu.com/security/notices/USN-6416-1
- https://ubuntu.com/security/notices/USN-6416-2
- https://ubuntu.com/security/notices/USN-6416-3
- https://ubuntu.com/security/notices/USN-6445-1
- https://ubuntu.com/security/notices/USN-6445-2
- https://ubuntu.com/security/notices/USN-6464-1
- https://ubuntu.com/security/notices/USN-6466-1
- https://ubuntu.com/security/notices/USN-6520-1
- https://www.cve.org/CVERecord?id=CVE-2023-3865
- https://www.zerodayinitiative.com/advisories/ZDI-23-980/