diff options
| author | Stefan Metzmacher <metze@samba.org> | 2013-09-25 23:25:12 +0200 |
|---|---|---|
| committer | Karolin Seeger <kseeger@samba.org> | 2013-12-09 07:05:45 +0100 |
| commit | 3be7907fd91749f228bf5f104ab0c673be3fef05 (patch) | |
| tree | 4af70e1a42a483eac883088886b4bc4e78ae07ae /source4/librpc | |
| parent | db5fff3bc91535a9dab8c622e5e98c098956bb65 (diff) | |
| download | samba-3be7907fd91749f228bf5f104ab0c673be3fef05.tar.gz | |
CVE-2013-4408:s4:dcerpc_smb: check for invalid frag_len in send_read_request_continue()
Bug: https://bugzilla.samba.org/show_bug.cgi?id=10185
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Diffstat (limited to 'source4/librpc')
| -rw-r--r-- | source4/librpc/rpc/dcerpc_smb.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/source4/librpc/rpc/dcerpc_smb.c b/source4/librpc/rpc/dcerpc_smb.c index a9903e5f920..036aa89bff3 100644 --- a/source4/librpc/rpc/dcerpc_smb.c +++ b/source4/librpc/rpc/dcerpc_smb.c @@ -163,6 +163,12 @@ static NTSTATUS send_read_request_continue(struct dcecli_connection *c, DATA_BLO } else { uint32_t frag_length = blob->length>=16? dcerpc_get_frag_length(blob):0x2000; + + if (frag_length < state->data.length) { + talloc_free(state); + return NT_STATUS_RPC_PROTOCOL_ERROR; + } + state->received = blob->length; state->data = data_blob_talloc(state, NULL, frag_length); if (!state->data.data) { |