Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decode_preauth_ctxt() Confirm that the accessed pneg_ctxt->HashAlgorithms address sits within the SMB request boundary; deassemble_neg_contexts() only checks that the eight byte smb2_neg_context header + (client controlled) DataLength are within the packet boundary, which is insufficient. Checking for sizeof(struct smb2_preauth_neg_context) is overkill given that the type currently assumes SMB311_SALT_SIZE bytes of trailing Salt.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before 39f5b4b313b445c980a2a295bed28228c29228ed; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before a2f6ded41bec1d3be643c80a5eb97f1680309001; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before f02edb9debbd36f44efa7567031485892c7df60d; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before e7067a446264a7514fa1cfaa4052cdb6803bc6a2 |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.145 through 5.15.*; unaffected 6.1.25 through 6.1.*; unaffected 6.2.12 through 6.2.*; unaffected 6.3 through * |
CWE
No CWE identifiers supplied.