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Code Issues 5 Pull Requests Releases Activity

Fix leak in krb5_rd_rep() callers

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This commit is contained in:
Nicolas Williams
2016-11-20 15:51:47 -06:00
parent 943e76f99b
commit 6696920d9e
1 changed files with 14 additions and 11 deletions
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25
lib/krb5/rd_rep.c
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@@ -45,6 +45,7 @@ krb5_rd_rep(krb5_context context,
krb5_data data;
krb5_crypto crypto;
*repl = NULL;
krb5_data_zero (&data);
ret = decode_AP_REP(inbuf->data, inbuf->length, &ap_rep, &len);
@@ -64,11 +65,11 @@ krb5_rd_rep(krb5_context context,
ret = krb5_crypto_init(context, auth_context->keyblock, 0, &crypto);
if (ret)
goto out;
ret = krb5_decrypt_EncryptedData (context,
crypto,
KRB5_KU_AP_REQ_ENC_PART,
&ap_rep.enc_part,
&data);
ret = krb5_decrypt_EncryptedData(context,
crypto,
KRB5_KU_AP_REQ_ENC_PART,
&ap_rep.enc_part,
&data);
krb5_crypto_destroy(context, crypto);
if (ret)
goto out;
@@ -81,17 +82,15 @@ krb5_rd_rep(krb5_context context,
ret = decode_EncAPRepPart(data.data, data.length, *repl, &len);
if (ret) {
krb5_set_error_message(context, ret, N_("Failed to decode EncAPRepPart", ""));
return ret;
goto out;
}
if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_TIME) {
if ((*repl)->ctime != auth_context->authenticator->ctime ||
(*repl)->cusec != auth_context->authenticator->cusec)
{
krb5_free_ap_rep_enc_part(context, *repl);
*repl = NULL;
ret = KRB5KRB_AP_ERR_MUT_FAIL;
krb5_clear_error_message (context);
krb5_clear_error_message(context);
goto out;
}
}
@@ -102,8 +101,12 @@ krb5_rd_rep(krb5_context context,
krb5_auth_con_setremotesubkey(context, auth_context, (*repl)->subkey);
out:
krb5_data_free (&data);
free_AP_REP (&ap_rep);
if (ret) {
krb5_free_ap_rep_enc_part(context, *repl);
*repl = NULL;
}
krb5_data_free(&data);
free_AP_REP(&ap_rep);
return ret;
}