diff --git a/src/handle_check_address.c b/src/handle_check_address.c
index 7950f7e..ef6d5ed 100644
--- a/src/handle_check_address.c
+++ b/src/handle_check_address.c
@@ -53,10 +53,12 @@ int handle_check_address(check_address_parameters_t* params, chain_config_t* cha
     ZERO(locals_union2);
     cx_ecfp_generate_pair(CX_CURVE_256K1, &locals_union2.publicKey, &locals_union1.privateKey, 1);
     ZERO(locals_union1);
-    getEthAddressStringFromKey(&locals_union2.publicKey,
-                               locals_union1.address,
-                               &local_sha3,
-                               chain_config->chainId);
+    if (!getEthAddressStringFromKey(&locals_union2.publicKey,
+                                    locals_union1.address,
+                                    &local_sha3,
+                                    chain_config->chainId)) {
+        THROW(CX_INVALID_PARAMETER);
+    }
     ZERO(locals_union2);
 
     uint8_t offset_0x = 0;
diff --git a/src/handle_get_printable_amount.c b/src/handle_get_printable_amount.c
index 715c85d..a890ff5 100644
--- a/src/handle_get_printable_amount.c
+++ b/src/handle_get_printable_amount.c
@@ -33,11 +33,13 @@ int handle_get_printable_amount(get_printable_amount_parameters_t* params, chain
         }
     }
 
-    amountToString(params->amount,
-                   params->amount_length,
-                   decimals,
-                   ticker,
-                   params->printable_amount,
-                   sizeof(params->printable_amount));
+    if (!amountToString(params->amount,
+                        params->amount_length,
+                        decimals,
+                        ticker,
+                        params->printable_amount,
+                        sizeof(params->printable_amount))) {
+        THROW(EXCEPTION_OVERFLOW);
+    }
     return 1;
 }
diff --git a/src/handle_swap_sign_transaction.c b/src/handle_swap_sign_transaction.c
index 604b8a2..789cbdd 100644
--- a/src/handle_swap_sign_transaction.c
+++ b/src/handle_swap_sign_transaction.c
@@ -35,22 +35,26 @@ bool copy_transaction_parameters(create_transaction_parameters_t* sign_transacti
         PRINTF("Error while parsing config\n");
         return false;
     }
-    amountToString(sign_transaction_params->amount,
-                   sign_transaction_params->amount_length,
-                   decimals,
-                   ticker,
-                   stack_data.fullAmount,
-                   sizeof(stack_data.fullAmount));
+    if (!amountToString(sign_transaction_params->amount,
+                        sign_transaction_params->amount_length,
+                        decimals,
+                        ticker,
+                        stack_data.fullAmount,
+                        sizeof(stack_data.fullAmount))) {
+        THROW(EXCEPTION_OVERFLOW);
+    }
 
     // If the amount is a fee, its value is nominated in ETH even if we're doing an ERC20 swap
     strlcpy(ticker, config->coinName, MAX_TICKER_LEN);
     decimals = WEI_TO_ETHER;
-    amountToString(sign_transaction_params->fee_amount,
-                   sign_transaction_params->fee_amount_length,
-                   decimals,
-                   ticker,
-                   stack_data.maxFee,
-                   sizeof(stack_data.maxFee));
+    if (!amountToString(sign_transaction_params->fee_amount,
+                        sign_transaction_params->fee_amount_length,
+                        decimals,
+                        ticker,
+                        stack_data.maxFee,
+                        sizeof(stack_data.maxFee))) {
+        THROW(EXCEPTION_OVERFLOW);
+    }
 
     // Full reset the global variables
     os_explicit_zero_BSS_segment();
diff --git a/src_bagl/ui_flow_stark_sign.c b/src_bagl/ui_flow_stark_sign.c
index 548e880..03174c7 100644
--- a/src_bagl/ui_flow_stark_sign.c
+++ b/src_bagl/ui_flow_stark_sign.c
@@ -4,6 +4,7 @@
 #include "ui_callbacks.h"
 #include "ethUtils.h"
 #include "starkDisplayUtils.h"
+#include "apdu_constants.h"
 
 // clang-format off
 UX_STEP_NOCB(ux_stark_limit_order_1_step,
@@ -78,6 +79,16 @@ UX_FLOW(ux_stark_limit_order_flow,
         &ux_stark_limit_order_7_step,
         &ux_stark_limit_order_8_step);
 
+static void stark_format_address(void) {
+    if (!getEthDisplayableAddress(dataContext.starkContext.conditionAddress,
+                                  strings.tmp.tmp,
+                                  sizeof(strings.tmp.tmp),
+                                  &global_sha3,
+                                  chainConfig->chainId)) {
+        THROW(APDU_RESPONSE_ERROR_NO_INFO);
+    }
+}
+
 //////////////////////////////////////////////////////////////////////
 // clang-format off
 UX_STEP_NOCB(ux_stark_transfer_1_step,
@@ -167,11 +178,7 @@ UX_STEP_NOCB_INIT(
 UX_STEP_NOCB_INIT(
     ux_stark_conditional_transfer_8_step,
     bnnn_paging,
-    getEthDisplayableAddress(dataContext.starkContext.conditionAddress,
-                                  strings.tmp.tmp,
-                                  sizeof(strings.tmp.tmp),
-                                  &global_sha3,
-                                  chainConfig->chainId),
+    stark_format_address(),
     {
       .title = "Cond. Address",
       .text = strings.tmp.tmp
diff --git a/src_features/getPublicKey/cmd_getPublicKey.c b/src_features/getPublicKey/cmd_getPublicKey.c
index bca0a88..eae16d5 100644
--- a/src_features/getPublicKey/cmd_getPublicKey.c
+++ b/src_features/getPublicKey/cmd_getPublicKey.c
@@ -49,10 +49,12 @@ void handleGetPublicKey(uint8_t p1,
     explicit_bzero(&privateKey, sizeof(privateKey));
     explicit_bzero(privateKeyData, sizeof(privateKeyData));
     io_seproxyhal_io_heartbeat();
-    getEthAddressStringFromKey(&tmpCtx.publicKeyContext.publicKey,
-                               tmpCtx.publicKeyContext.address,
-                               &global_sha3,
-                               chainConfig->chainId);
+    if (!getEthAddressStringFromKey(&tmpCtx.publicKeyContext.publicKey,
+                                    tmpCtx.publicKeyContext.address,
+                                    &global_sha3,
+                                    chainConfig->chainId)) {
+        THROW(CX_INVALID_PARAMETER);
+    }
 
     uint64_t chain_id = chainConfig->chainId;
     if (dataLength >= sizeof(chain_id)) {
diff --git a/src_features/performPrivacyOperation/cmd_performPrivacyOperation.c b/src_features/performPrivacyOperation/cmd_performPrivacyOperation.c
index 5cb9552..aebb987 100644
--- a/src_features/performPrivacyOperation/cmd_performPrivacyOperation.c
+++ b/src_features/performPrivacyOperation/cmd_performPrivacyOperation.c
@@ -62,10 +62,12 @@ void handlePerformPrivacyOperation(uint8_t p1,
         (tmpCtx.publicKeyContext.getChaincode ? tmpCtx.publicKeyContext.chainCode : NULL));
     cx_ecfp_init_private_key(CX_CURVE_256K1, privateKeyData, 32, &privateKey);
     cx_ecfp_generate_pair(CX_CURVE_256K1, &tmpCtx.publicKeyContext.publicKey, &privateKey, 1);
-    getEthAddressStringFromKey(&tmpCtx.publicKeyContext.publicKey,
-                               tmpCtx.publicKeyContext.address,
-                               &global_sha3,
-                               chainConfig->chainId);
+    if (!getEthAddressStringFromKey(&tmpCtx.publicKeyContext.publicKey,
+                                    tmpCtx.publicKeyContext.address,
+                                    &global_sha3,
+                                    chainConfig->chainId)) {
+        THROW(CX_INVALID_PARAMETER);
+    }
     if (p2 == P2_PUBLIC_ENCRYPTION_KEY) {
         decodeScalar(privateKeyData, privateKeyDataSwapped);
         cx_ecfp_init_private_key(CX_CURVE_Curve25519, privateKeyDataSwapped, 32, &privateKey);
diff --git a/src_features/signMessageEIP712/ui_logic.c b/src_features/signMessageEIP712/ui_logic.c
index e6f7b6a..aa7dcd8 100644
--- a/src_features/signMessageEIP712/ui_logic.c
+++ b/src_features/signMessageEIP712/ui_logic.c
@@ -198,11 +198,13 @@ static bool ui_712_format_addr(const uint8_t *const data, uint8_t length) {
         return false;
     }
     if (ui_712_field_shown()) {
-        getEthDisplayableAddress((uint8_t *) data,
-                                 strings.tmp.tmp,
-                                 sizeof(strings.tmp.tmp),
-                                 &global_sha3,
-                                 chainConfig->chainId);
+        if (!getEthDisplayableAddress((uint8_t *) data,
+                                      strings.tmp.tmp,
+                                      sizeof(strings.tmp.tmp),
+                                      &global_sha3,
+                                      chainConfig->chainId)) {
+            THROW(APDU_RESPONSE_ERROR_NO_INFO);
+        }
     }
     return true;
 }
diff --git a/src_features/signTx/logic_signTx.c b/src_features/signTx/logic_signTx.c
index c84e9d1..5c47e64 100644
--- a/src_features/signTx/logic_signTx.c
+++ b/src_features/signTx/logic_signTx.c
@@ -1,3 +1,4 @@
+#include <ctype.h>
 #include "shared_context.h"
 #include "utils.h"
 #include "feature_signTx.h"
@@ -9,7 +10,7 @@
 #include "ethUtils.h"
 #include "common_ui.h"
 #include "ui_callbacks.h"
-#include <ctype.h>
+#include "apdu_constants.h"
 
 #define ERR_SILENT_MODE_CHECK_FAILED 0x6001
 
@@ -189,7 +190,9 @@ static void address_to_string(uint8_t *in,
                               cx_sha3_t *sha3,
                               uint64_t chainId) {
     if (in_len != 0) {
-        getEthDisplayableAddress(in, out, out_len, sha3, chainId);
+        if (!getEthDisplayableAddress(in, out, out_len, sha3, chainId)) {
+            THROW(APDU_RESPONSE_ERROR_NO_INFO);
+        }
     } else {
         strlcpy(out, "Contract", out_len);
     }
@@ -269,7 +272,9 @@ static void get_network_as_string(char *out, size_t out_size) {
 
     if (name == NULL) {
         // No network name found so simply copy the chain ID as the network name.
-        u64_to_string(chain_id, out, out_size);
+        if (!u64_to_string(chain_id, out, out_size)) {
+            THROW(0x6502);
+        }
     } else {
         // Network name found, simply copy it.
         strlcpy(out, name, out_size);
@@ -294,7 +299,9 @@ static void get_public_key(uint8_t *out, uint8_t outLength) {
     cx_ecfp_generate_pair(CX_CURVE_256K1, &publicKey, &privateKey, 1);
     explicit_bzero(&privateKey, sizeof(privateKey));
     explicit_bzero(privateKeyData, sizeof(privateKeyData));
-    getEthAddressFromKey(&publicKey, out, &global_sha3);
+    if (!getEthAddressFromKey(&publicKey, out, &global_sha3)) {
+        THROW(CX_INVALID_PARAMETER);
+    }
 }
 
 /* Local implmentation of strncasecmp, workaround of the segfaulting base implem
diff --git a/src_nbgl/ui_stark_transfer.c b/src_nbgl/ui_stark_transfer.c
index d7decfb..bb41e1e 100644
--- a/src_nbgl/ui_stark_transfer.c
+++ b/src_nbgl/ui_stark_transfer.c
@@ -65,11 +65,13 @@ static bool displayTransactionPage(uint8_t page, nbgl_pageContent_t *content) {
     }
     if (page == 1) {
         if (context.conditional) {
-            getEthDisplayableAddress(dataContext.starkContext.conditionAddress,
-                                     condAddressBuffer,
-                                     sizeof(condAddressBuffer),
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(dataContext.starkContext.conditionAddress,
+                                          condAddressBuffer,
+                                          sizeof(condAddressBuffer),
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                return false;
+            }
             pairs[0].item = "Cond. Address";
             pairs[0].value = condAddressBuffer;
 
diff --git a/src_plugins/erc1155/erc1155_ui.c b/src_plugins/erc1155/erc1155_ui.c
index 4306704..72ea223 100644
--- a/src_plugins/erc1155/erc1155_ui.c
+++ b/src_plugins/erc1155/erc1155_ui.c
@@ -14,11 +14,13 @@ static void set_approval_for_all_ui(ethQueryContractUI_t *msg, erc1155_context_t
             } else {
                 strlcpy(msg->title, "Revoke", msg->titleLength);
             }
-            getEthDisplayableAddress(context->address,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(context->address,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 1:
             strlcpy(msg->title, "To Manage ALL", msg->titleLength);
@@ -26,11 +28,13 @@ static void set_approval_for_all_ui(ethQueryContractUI_t *msg, erc1155_context_t
             break;
         case 2:
             strlcpy(msg->title, "NFT Address", msg->titleLength);
-            getEthDisplayableAddress(msg->item1->nft.contractAddress,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(msg->item1->nft.contractAddress,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         default:
             PRINTF("Unsupported screen index %d\n", msg->screenIndex);
@@ -43,11 +47,13 @@ static void set_transfer_ui(ethQueryContractUI_t *msg, erc1155_context_t *contex
     switch (msg->screenIndex) {
         case 0:
             strlcpy(msg->title, "To", msg->titleLength);
-            getEthDisplayableAddress(context->address,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(context->address,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 1:
             strlcpy(msg->title, "Collection Name", msg->titleLength);
@@ -55,22 +61,28 @@ static void set_transfer_ui(ethQueryContractUI_t *msg, erc1155_context_t *contex
             break;
         case 2:
             strlcpy(msg->title, "NFT Address", msg->titleLength);
-            getEthDisplayableAddress(msg->item1->nft.contractAddress,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(msg->item1->nft.contractAddress,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 3:
             strlcpy(msg->title, "NFT ID", msg->titleLength);
-            uint256_to_decimal(context->tokenId,
-                               sizeof(context->tokenId),
-                               msg->msg,
-                               msg->msgLength);
+            if (!uint256_to_decimal(context->tokenId,
+                                    sizeof(context->tokenId),
+                                    msg->msg,
+                                    msg->msgLength)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 4:
             strlcpy(msg->title, "Quantity", msg->titleLength);
-            tostring256(&context->value, 10, msg->msg, msg->msgLength);
+            if (!tostring256(&context->value, 10, msg->msg, msg->msgLength)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         default:
             PRINTF("Unsupported screen index %d\n", msg->screenIndex);
@@ -85,11 +97,13 @@ static void set_batch_transfer_ui(ethQueryContractUI_t *msg, erc1155_context_t *
     switch (msg->screenIndex) {
         case 0:
             strlcpy(msg->title, "To", msg->titleLength);
-            getEthDisplayableAddress(context->address,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(context->address,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 1:
             strlcpy(msg->title, "Collection Name", msg->titleLength);
@@ -97,15 +111,20 @@ static void set_batch_transfer_ui(ethQueryContractUI_t *msg, erc1155_context_t *
             break;
         case 2:
             strlcpy(msg->title, "NFT Address", msg->titleLength);
-            getEthDisplayableAddress(msg->item1->nft.contractAddress,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(msg->item1->nft.contractAddress,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 3:
             strlcpy(msg->title, "Total Quantity", msg->titleLength);
-            tostring256(&context->value, 10, &quantity_str[0], sizeof(quantity_str));
+            if (!tostring256(&context->value, 10, &quantity_str[0], sizeof(quantity_str))) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+                break;
+            }
             snprintf(msg->msg,
                      msg->msgLength,
                      "%s from %d NFT IDs",
diff --git a/src_plugins/erc20/erc20_plugin.c b/src_plugins/erc20/erc20_plugin.c
index 220e05f..33380db 100644
--- a/src_plugins/erc20/erc20_plugin.c
+++ b/src_plugins/erc20/erc20_plugin.c
@@ -201,12 +201,14 @@ void erc20_plugin_call(int message, void *parameters) {
                         strlcpy(msg->msg, "Unlimited ", msg->msgLength);
                         strlcat(msg->msg, context->ticker, msg->msgLength);
                     } else {
-                        amountToString(context->amount,
-                                       sizeof(context->amount),
-                                       context->decimals,
-                                       context->ticker,
-                                       msg->msg,
-                                       100);
+                        if (!amountToString(context->amount,
+                                            sizeof(context->amount),
+                                            context->decimals,
+                                            context->ticker,
+                                            msg->msg,
+                                            100)) {
+                            THROW(EXCEPTION_OVERFLOW);
+                        }
                     }
                     msg->result = ETH_PLUGIN_RESULT_OK;
                     break;
@@ -216,11 +218,13 @@ void erc20_plugin_call(int message, void *parameters) {
                         strlcpy(msg->msg, context->contract_name, msg->msgLength);
                     } else {
                         strlcpy(msg->title, "Address", msg->titleLength);
-                        getEthDisplayableAddress(context->destinationAddress,
-                                                 msg->msg,
-                                                 msg->msgLength,
-                                                 msg->pluginSharedRW->sha3,
-                                                 chainConfig->chainId);
+                        if (!getEthDisplayableAddress(context->destinationAddress,
+                                                      msg->msg,
+                                                      msg->msgLength,
+                                                      msg->pluginSharedRW->sha3,
+                                                      chainConfig->chainId)) {
+                            msg->result = ETH_PLUGIN_RESULT_ERROR;
+                        }
                     }
 
                     msg->result = ETH_PLUGIN_RESULT_OK;
diff --git a/src_plugins/erc721/erc721_ui.c b/src_plugins/erc721/erc721_ui.c
index 8fc4c59..caaf395 100644
--- a/src_plugins/erc721/erc721_ui.c
+++ b/src_plugins/erc721/erc721_ui.c
@@ -10,11 +10,13 @@ static void set_approval_ui(ethQueryContractUI_t *msg, erc721_context_t *context
     switch (msg->screenIndex) {
         case 0:
             strlcpy(msg->title, "Allow", msg->titleLength);
-            getEthDisplayableAddress(context->address,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(context->address,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 1:
             strlcpy(msg->title, "To Manage Your", msg->titleLength);
@@ -22,18 +24,22 @@ static void set_approval_ui(ethQueryContractUI_t *msg, erc721_context_t *context
             break;
         case 2:
             strlcpy(msg->title, "NFT Address", msg->titleLength);
-            getEthDisplayableAddress(msg->item1->nft.contractAddress,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(msg->item1->nft.contractAddress,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 3:
             strlcpy(msg->title, "NFT ID", msg->titleLength);
-            uint256_to_decimal(context->tokenId,
-                               sizeof(context->tokenId),
-                               msg->msg,
-                               msg->msgLength);
+            if (!uint256_to_decimal(context->tokenId,
+                                    sizeof(context->tokenId),
+                                    msg->msg,
+                                    msg->msgLength)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         default:
             PRINTF("Unsupported screen index %d\n", msg->screenIndex);
@@ -50,11 +56,13 @@ static void set_approval_for_all_ui(ethQueryContractUI_t *msg, erc721_context_t
             } else {
                 strlcpy(msg->title, "Revoke", msg->titleLength);
             }
-            getEthDisplayableAddress(context->address,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(context->address,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 1:
             strlcpy(msg->title, "To Manage ALL", msg->titleLength);
@@ -62,11 +70,13 @@ static void set_approval_for_all_ui(ethQueryContractUI_t *msg, erc721_context_t
             break;
         case 2:
             strlcpy(msg->title, "NFT Address", msg->titleLength);
-            getEthDisplayableAddress(msg->item1->nft.contractAddress,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(msg->item1->nft.contractAddress,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         default:
             PRINTF("Unsupported screen index %d\n", msg->screenIndex);
@@ -79,11 +89,13 @@ static void set_transfer_ui(ethQueryContractUI_t *msg, erc721_context_t *context
     switch (msg->screenIndex) {
         case 0:
             strlcpy(msg->title, "To", msg->titleLength);
-            getEthDisplayableAddress(context->address,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(context->address,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 1:
             strlcpy(msg->title, "Collection Name", msg->titleLength);
@@ -91,18 +103,22 @@ static void set_transfer_ui(ethQueryContractUI_t *msg, erc721_context_t *context
             break;
         case 2:
             strlcpy(msg->title, "NFT Address", msg->titleLength);
-            getEthDisplayableAddress(msg->item1->nft.contractAddress,
-                                     msg->msg,
-                                     msg->msgLength,
-                                     &global_sha3,
-                                     chainConfig->chainId);
+            if (!getEthDisplayableAddress(msg->item1->nft.contractAddress,
+                                          msg->msg,
+                                          msg->msgLength,
+                                          &global_sha3,
+                                          chainConfig->chainId)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         case 3:
             strlcpy(msg->title, "NFT ID", msg->titleLength);
-            uint256_to_decimal(context->tokenId,
-                               sizeof(context->tokenId),
-                               msg->msg,
-                               msg->msgLength);
+            if (!uint256_to_decimal(context->tokenId,
+                                    sizeof(context->tokenId),
+                                    msg->msg,
+                                    msg->msgLength)) {
+                msg->result = ETH_PLUGIN_RESULT_ERROR;
+            }
             break;
         default:
             PRINTF("Unsupported screen index %d\n", msg->screenIndex);
diff --git a/src_plugins/eth2/eth2_plugin.c b/src_plugins/eth2/eth2_plugin.c
index c93c82e..352a9f3 100644
--- a/src_plugins/eth2/eth2_plugin.c
+++ b/src_plugins/eth2/eth2_plugin.c
@@ -117,11 +117,14 @@ void eth2_plugin_call(int message, void *parameters) {
 
                     // Use a temporary buffer to store the string representation.
                     char tmp[ETH2_DEPOSIT_PUBKEY_LENGTH];
-                    getEthDisplayableAddress((uint8_t *) context->deposit_address,
-                                             tmp,
-                                             sizeof(tmp),
-                                             msg->pluginSharedRW->sha3,
-                                             chainConfig->chainId);
+                    if (!getEthDisplayableAddress((uint8_t *) context->deposit_address,
+                                                  tmp,
+                                                  sizeof(tmp),
+                                                  msg->pluginSharedRW->sha3,
+                                                  chainConfig->chainId)) {
+                        msg->result = ETH_PLUGIN_RESULT_ERROR;
+                        return;
+                    }
 
                     // Copy back the string to the global variable.
                     strlcpy(context->deposit_address, tmp, ETH2_DEPOSIT_PUBKEY_LENGTH);
@@ -200,12 +203,14 @@ void eth2_plugin_call(int message, void *parameters) {
                     uint8_t decimals = WEI_TO_ETHER;
                     char *ticker = chainConfig->coinName;
                     strlcpy(msg->title, "Amount", msg->titleLength);
-                    amountToString(tmpContent.txContent.value.value,
-                                   tmpContent.txContent.value.length,
-                                   decimals,
-                                   ticker,
-                                   msg->msg,
-                                   100);
+                    if (!amountToString(tmpContent.txContent.value.value,
+                                        tmpContent.txContent.value.length,
+                                        decimals,
+                                        ticker,
+                                        msg->msg,
+                                        100)) {
+                        THROW(EXCEPTION_OVERFLOW);
+                    }
                     msg->result = ETH_PLUGIN_RESULT_OK;
                 } break;
                 case 1: {  // Deposit pubkey screen
diff --git a/src_plugins/starkware/starkware_plugin.c b/src_plugins/starkware/starkware_plugin.c
index 634ea4e..d0ee269 100644
--- a/src_plugins/starkware/starkware_plugin.c
+++ b/src_plugins/starkware/starkware_plugin.c
@@ -6,6 +6,7 @@
 #include "stark_utils.h"
 #include "utils.h"
 #include "ethUtils.h"
+#include "apdu_constants.h"
 
 #ifdef HAVE_STARKWARE
 
@@ -352,11 +353,13 @@ void starkware_print_asset_contract(char *destination, size_t destinationLength)
     if (dataContext.tokenContext.quantumIndex != MAX_ITEMS) {
         tokenDefinition_t *token =
             &tmpCtx.transactionContext.extraInfo[dataContext.tokenContext.quantumIndex].token;
-        getEthDisplayableAddress(token->address,
-                                 destination,
-                                 destinationLength,
-                                 &global_sha3,
-                                 chainConfig->chainId);
+        if (!getEthDisplayableAddress(token->address,
+                                      destination,
+                                      destinationLength,
+                                      &global_sha3,
+                                      chainConfig->chainId)) {
+            THROW(APDU_RESPONSE_ERROR_NO_INFO);
+        }
     } else {
         strlcpy(destination, "UNKNOWN", destinationLength);
     }
@@ -380,7 +383,12 @@ void starkware_get_source_address(char *destination) {
     io_seproxyhal_io_heartbeat();
     destination[0] = '0';
     destination[1] = 'x';
-    getEthAddressStringFromKey(&publicKey, destination + 2, &global_sha3, chainConfig->chainId);
+    if (!getEthAddressStringFromKey(&publicKey,
+                                    destination + 2,
+                                    &global_sha3,
+                                    chainConfig->chainId)) {
+        THROW(CX_INVALID_PARAMETER);
+    }
     destination[42] = '\0';
 }
 
@@ -716,11 +724,13 @@ void starkware_plugin_call(int message, void *parameters) {
                     if (is_deversify_contract(tmpContent.txContent.destination)) {
                         strlcpy(msg->msg, "DeversiFi", msg->msgLength);
                     } else {
-                        getEthDisplayableAddress(tmpContent.txContent.destination,
-                                                 msg->msg,
-                                                 msg->msgLength,
-                                                 &global_sha3,
-                                                 chainConfig->chainId);
+                        if (!getEthDisplayableAddress(tmpContent.txContent.destination,
+                                                      msg->msg,
+                                                      msg->msgLength,
+                                                      &global_sha3,
+                                                      chainConfig->chainId)) {
+                            THROW(APDU_RESPONSE_ERROR_NO_INFO);
+                        }
                     }
                     msg->result = ETH_PLUGIN_RESULT_OK;
                     break;
@@ -730,11 +740,13 @@ void starkware_plugin_call(int message, void *parameters) {
                         case STARKWARE_REGISTER_AND_DEPOSIT_TOKEN:
                         case STARKWARE_REGISTER_AND_DEPOSIT_ETH:
                             strlcpy(msg->title, "From ETH Address", msg->titleLength);
-                            getEthDisplayableAddress(context->amount,
-                                                     msg->msg,
-                                                     msg->msgLength,
-                                                     &global_sha3,
-                                                     chainConfig->chainId);
+                            if (!getEthDisplayableAddress(context->amount,
+                                                          msg->msg,
+                                                          msg->msgLength,
+                                                          &global_sha3,
+                                                          chainConfig->chainId)) {
+                                THROW(APDU_RESPONSE_ERROR_NO_INFO);
+                            }
                             break;
                         case STARKWARE_ESCAPE:
                             strlcpy(msg->title, "Amount", msg->titleLength);
@@ -806,11 +818,13 @@ void starkware_plugin_call(int message, void *parameters) {
                         case STARKWARE_WITHDRAW_TO:
                         case STARKWARE_WITHDRAW_NFT_TO:
                             strlcpy(msg->title, "To ETH Address", msg->titleLength);
-                            getEthDisplayableAddress(context->amount,
-                                                     msg->msg,
-                                                     msg->msgLength,
-                                                     &global_sha3,
-                                                     chainConfig->chainId);
+                            if (!getEthDisplayableAddress(context->amount,
+                                                          msg->msg,
+                                                          msg->msgLength,
+                                                          &global_sha3,
+                                                          chainConfig->chainId)) {
+                                THROW(APDU_RESPONSE_ERROR_NO_INFO);
+                            }
                             break;
                         case STARKWARE_WITHDRAW_AND_MINT:
                             strlcpy(msg->title, "Asset Contract", msg->titleLength);