3 files changed, 3 insertions, 3 deletions
diff --git a/synapse/crypto/context_factory.py b/synapse/crypto/context_factory.py
index aad4752fe7..cff3ca809a 100644
--- a/synapse/crypto/context_factory.py
+++ b/synapse/crypto/context_factory.py
@@ -34,7 +34,7 @@ class ServerContextFactory(ssl.ContextFactory):
         try:
             _ecCurve = _OpenSSLECCurve(_defaultCurveName)
             _ecCurve.addECKeyToContext(context)
-        except:
+        except Exception:
             logger.exception("Failed to enable elliptic curve for TLS")
         context.set_options(SSL.OP_NO_SSLv2 | SSL.OP_NO_SSLv3)
         context.use_certificate_chain_file(config.tls_certificate_file)
diff --git a/synapse/crypto/event_signing.py b/synapse/crypto/event_signing.py
index ec7711ba7d..0d0e7b5286 100644
--- a/synapse/crypto/event_signing.py
+++ b/synapse/crypto/event_signing.py
@@ -43,7 +43,7 @@ def check_event_content_hash(event, hash_algorithm=hashlib.sha256):
     message_hash_base64 = event.hashes[name]
     try:
         message_hash_bytes = decode_base64(message_hash_base64)
-    except:
+    except Exception:
         raise SynapseError(
             400,
             "Invalid base64: %s" % (message_hash_base64,),
diff --git a/synapse/crypto/keyring.py b/synapse/crypto/keyring.py
index 054bac456d..35f810b07b 100644
--- a/synapse/crypto/keyring.py
+++ b/synapse/crypto/keyring.py
@@ -759,7 +759,7 @@ def _handle_key_deferred(verify_request):
     ))
     try:
         verify_signed_json(json_object, server_name, verify_key)
-    except:
+    except Exception:
         raise SynapseError(
             401,
             "Invalid signature for server %s with key %s:%s" % (