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libcli/auth: reject computer_name longer than 15 chars

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This matches Windows, it seems they use a fixed size field to store
netlogon_creds_CredentialState.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Stefan Metzmacher 2014-01-10 13:13:40 +01:00
parent 387ed2e15d
commit b8fdeb8ca7
1 changed files with 8 additions and 0 deletions
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8
libcli/auth/schannel_state_tdb.c
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@ -78,6 +78,14 @@ NTSTATUS schannel_store_session_key_tdb(struct db_context *db_sc,
char *name_upper;
NTSTATUS status;
if (strlen(creds->computer_name) > 15) {
/*
* We may want to check for a completely
* valid netbios name.
*/
return STATUS_BUFFER_OVERFLOW;
}
name_upper = strupper_talloc(mem_ctx, creds->computer_name);
if (!name_upper) {
return NT_STATUS_NO_MEMORY;