[C++ SDK] Fixed vulnerabilities (#20913)

Author: Gazizonoki

.github/last_commit.txt

@@ -1 +1 @@
-f3a44b617baf1e14b9f933dbd9e53f3aa271d12f
+9949fe4a8f217461246f81be40113f8af4d91847

src/client/impl/ydb_internal/retry/retry_async.h

@@ -114,7 +114,6 @@ class TRetryWithoutSession : public TRetryContext<TClient, TAsyncStatusType> {
 template <typename TClient, typename TOperation, typename TAsyncStatusType = TFunctionResult<TOperation>>
 class TRetryWithSession : public TRetryContext<TClient, TAsyncStatusType> {
     using TRetryContextAsync = TRetryContext<TClient, TAsyncStatusType>;
-    using TPtr = typename TRetryContextAsync::TPtr;
     using TStatusType = typename TRetryContextAsync::TStatusType;
     using TSession = typename TClient::TSession;
     using TCreateSessionSettings = typename TClient::TCreateSessionSettings;
@@ -132,7 +131,7 @@ class TRetryWithSession : public TRetryContext<TClient, TAsyncStatusType> {
     {}
 
     void Retry() override {
-        TPtr self(this);
+        TIntrusivePtr<TRetryWithSession> self(this);
         if (!Session_) {
             auto settings = TCreateSessionSettings().ClientTimeout(this->Settings_.GetSessionClientTimeout_);
             this->Client_.GetSession(settings).Subscribe(
@@ -143,9 +142,8 @@ class TRetryWithSession : public TRetryContext<TClient, TAsyncStatusType> {
                             return TRetryContextAsync::HandleStatusAsync(self, TStatusType(TStatus(result)));
                         }
 
-                        auto* myself = dynamic_cast<TRetryWithSession*>(self.Get());
-                        myself->Session_ = result.GetSession();
-                        myself->DoRunOperation(self);
+                        self->Session_ = result.GetSession();
+                        self->DoRunOperation(self);
                     } catch (...) {
                         return TRetryContextAsync::HandleExceptionAsync(self, std::current_exception());
                     }

src/client/table/table.cpp

@@ -2508,7 +2508,7 @@ TIndexDescription TIndexDescription::FromProto(const TProto& proto) {
     std::vector<std::string> indexColumns;
     std::vector<std::string> dataColumns;
     std::vector<TGlobalIndexSettings> globalIndexSettings;
-    std::variant<std::monostate, TKMeansTreeSettings> specializedIndexSettings;
+    std::variant<std::monostate, TKMeansTreeSettings> specializedIndexSettings = std::monostate{};
 
     indexColumns.assign(proto.index_columns().begin(), proto.index_columns().end());
     dataColumns.assign(proto.data_columns().begin(), proto.data_columns().end());